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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/183031">183031</a></dd>
<dt>Author</dt> <dd>commit-queue@webkit.org</dd>
<dt>Date</dt> <dd>2015-04-20 15:07:31 -0700 (Mon, 20 Apr 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Cleanup some StringBuilder use
https://bugs.webkit.org/show_bug.cgi?id=143550

Patch by Joseph Pecoraro &lt;pecoraro@apple.com&gt; on 2015-04-20
Reviewed by Darin Adler.

Source/JavaScriptCore:

* runtime/Symbol.cpp:
(JSC::Symbol::descriptiveString):
* runtime/TypeProfiler.cpp:
(JSC::TypeProfiler::typeInformationForExpressionAtOffset):
* runtime/TypeSet.cpp:
(JSC::TypeSet::toJSONString):
(JSC::StructureShape::propertyHash):
(JSC::StructureShape::stringRepresentation):
(JSC::StructureShape::toJSONString):

Source/WebCore:

* Modules/plugins/YouTubePluginReplacement.cpp:
(WebCore::YouTubePluginReplacement::youTubeURL):
* css/CSSAnimationTriggerScrollValue.cpp:
(WebCore::CSSAnimationTriggerScrollValue::customCSSText):
* css/CSSCanvasValue.cpp:
(WebCore::CSSCanvasValue::customCSSText):
* html/HTMLCanvasElement.cpp:
(WebCore::HTMLCanvasElement::createImageBuffer):
* page/CaptionUserPreferencesMediaAF.cpp:
(WebCore::CaptionUserPreferencesMediaAF::captionsWindowCSS):
(WebCore::CaptionUserPreferencesMediaAF::windowRoundedCornerRadiusCSS):
(WebCore::CaptionUserPreferencesMediaAF::cssPropertyWithTextEdgeColor):
(WebCore::CaptionUserPreferencesMediaAF::colorPropertyCSS):
(WebCore::CaptionUserPreferencesMediaAF::captionsDefaultFontCSS):
(WebCore::CaptionUserPreferencesMediaAF::captionsStyleSheetOverride):
* page/EventSource.cpp:
(WebCore::EventSource::didReceiveResponse):
* page/PageSerializer.cpp:
(WebCore::PageSerializer::serializeCSSStyleSheet):
* platform/graphics/OpenGLShims.cpp:
(WebCore::lookupOpenGLFunctionAddress):
* platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp:
(WebCore::InbandTextTrackPrivateAVF::processCueAttributes):
* platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp:
(WebCore::generateHashedName):
* platform/text/DateTimeFormat.cpp:
(WebCore::DateTimeFormat::quoteAndAppendLiteral):
* rendering/RenderLayerCompositor.cpp:
(WebCore::RenderLayerCompositor::logLayerInfo):
* rendering/RenderTreeAsText.cpp:
(WebCore::writeRenderRegionList):
* testing/MicroTaskTest.cpp:
(WebCore::MicroTaskTest::run):
* testing/MockContentFilterSettings.cpp:
(WebCore::MockContentFilterSettings::unblockRequestURL):

Source/WebKit2:

* DatabaseProcess/IndexedDB/sqlite/SQLiteIDBCursor.cpp:
(WebKit::buildObjectStoreStatement):
* DatabaseProcess/IndexedDB/sqlite/UniqueIDBDatabaseBackingStoreSQLite.cpp:
(WebKit::v2RecordsTableSchema):
* Shared/Databases/IndexedDB/IDBUtilities.cpp:
(WebKit::uniqueDatabaseIdentifier):
* UIProcess/API/APIUserScript.cpp:
(API::UserScript::generateUniqueURL):
* UIProcess/WebProcessPool.cpp:
(WebKit::WebProcessPool::didReceiveInvalidMessage):
* WebProcess/Databases/IndexedDB/WebIDBFactoryBackend.cpp:
(WebKit::combinedSecurityOriginIdentifier):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeSymbolcpp">trunk/Source/JavaScriptCore/runtime/Symbol.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeTypeProfilercpp">trunk/Source/JavaScriptCore/runtime/TypeProfiler.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCoreruntimeTypeSetcpp">trunk/Source/JavaScriptCore/runtime/TypeSet.cpp</a></li>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreModulespluginsYouTubePluginReplacementcpp">trunk/Source/WebCore/Modules/plugins/YouTubePluginReplacement.cpp</a></li>
<li><a href="#trunkSourceWebCorecssCSSAnimationTriggerScrollValuecpp">trunk/Source/WebCore/css/CSSAnimationTriggerScrollValue.cpp</a></li>
<li><a href="#trunkSourceWebCorecssCSSCanvasValuecpp">trunk/Source/WebCore/css/CSSCanvasValue.cpp</a></li>
<li><a href="#trunkSourceWebCorehtmlHTMLCanvasElementcpp">trunk/Source/WebCore/html/HTMLCanvasElement.cpp</a></li>
<li><a href="#trunkSourceWebCorepageCaptionUserPreferencesMediaAFcpp">trunk/Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp</a></li>
<li><a href="#trunkSourceWebCorepageEventSourcecpp">trunk/Source/WebCore/page/EventSource.cpp</a></li>
<li><a href="#trunkSourceWebCorepagePageSerializercpp">trunk/Source/WebCore/page/PageSerializer.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsOpenGLShimscpp">trunk/Source/WebCore/platform/graphics/OpenGLShims.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsavfoundationInbandTextTrackPrivateAVFcpp">trunk/Source/WebCore/platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsopenglGraphicsContext3DOpenGLCommoncpp">trunk/Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformtextDateTimeFormatcpp">trunk/Source/WebCore/platform/text/DateTimeFormat.cpp</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderLayerCompositorcpp">trunk/Source/WebCore/rendering/RenderLayerCompositor.cpp</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderTreeAsTextcpp">trunk/Source/WebCore/rendering/RenderTreeAsText.cpp</a></li>
<li><a href="#trunkSourceWebCoretestingMicroTaskTestcpp">trunk/Source/WebCore/testing/MicroTaskTest.cpp</a></li>
<li><a href="#trunkSourceWebCoretestingMockContentFilterSettingscpp">trunk/Source/WebCore/testing/MockContentFilterSettings.cpp</a></li>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2DatabaseProcessIndexedDBsqliteSQLiteIDBCursorcpp">trunk/Source/WebKit2/DatabaseProcess/IndexedDB/sqlite/SQLiteIDBCursor.cpp</a></li>
<li><a href="#trunkSourceWebKit2DatabaseProcessIndexedDBsqliteUniqueIDBDatabaseBackingStoreSQLitecpp">trunk/Source/WebKit2/DatabaseProcess/IndexedDB/sqlite/UniqueIDBDatabaseBackingStoreSQLite.cpp</a></li>
<li><a href="#trunkSourceWebKit2SharedDatabasesIndexedDBIDBUtilitiescpp">trunk/Source/WebKit2/Shared/Databases/IndexedDB/IDBUtilities.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPIAPIUserScriptcpp">trunk/Source/WebKit2/UIProcess/API/APIUserScript.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessWebProcessPoolcpp">trunk/Source/WebKit2/UIProcess/WebProcessPool.cpp</a></li>
<li><a href="#trunkSourceWebKit2WebProcessDatabasesIndexedDBWebIDBFactoryBackendcpp">trunk/Source/WebKit2/WebProcess/Databases/IndexedDB/WebIDBFactoryBackend.cpp</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/JavaScriptCore/ChangeLog        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -1,3 +1,20 @@
</span><ins>+2015-04-20  Joseph Pecoraro  &lt;pecoraro@apple.com&gt;
+
+        Cleanup some StringBuilder use
+        https://bugs.webkit.org/show_bug.cgi?id=143550
+
+        Reviewed by Darin Adler.
+
+        * runtime/Symbol.cpp:
+        (JSC::Symbol::descriptiveString):
+        * runtime/TypeProfiler.cpp:
+        (JSC::TypeProfiler::typeInformationForExpressionAtOffset):
+        * runtime/TypeSet.cpp:
+        (JSC::TypeSet::toJSONString):
+        (JSC::StructureShape::propertyHash):
+        (JSC::StructureShape::stringRepresentation):
+        (JSC::StructureShape::toJSONString):
+
</ins><span class="cx"> 2015-04-20  Mark Lam  &lt;mark.lam@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Add debugging tools to test if a given pointer is a valid object and in the heap.
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeSymbolcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/Symbol.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/Symbol.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/JavaScriptCore/runtime/Symbol.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -95,11 +95,7 @@
</span><span class="cx"> 
</span><span class="cx"> String Symbol::descriptiveString() const
</span><span class="cx"> {
</span><del>-    StringBuilder builder;
-    builder.appendLiteral(&quot;Symbol(&quot;);
-    builder.append(privateName().uid());
-    builder.append(')');
-    return builder.toString();
</del><ins>+    return makeString(&quot;Symbol(&quot;, String(privateName().uid()), ')');
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> } // namespace JSC
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeTypeProfilercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/TypeProfiler.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/TypeProfiler.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/JavaScriptCore/runtime/TypeProfiler.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -82,27 +82,27 @@
</span><span class="cx"> 
</span><span class="cx">     StringBuilder json;  
</span><span class="cx"> 
</span><del>-    json.append(&quot;{&quot;);
</del><ins>+    json.append('{');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;globalTypeSet\&quot;:&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;globalTypeSet\&quot;:&quot;);
</ins><span class="cx">     if (location-&gt;m_globalTypeSet &amp;&amp; location-&gt;m_globalVariableID != TypeProfilerNoGlobalIDExists)
</span><span class="cx">         json.append(location-&gt;m_globalTypeSet-&gt;toJSONString());
</span><span class="cx">     else
</span><del>-        json.append(&quot;null&quot;);
-    json.append(&quot;,&quot;);
</del><ins>+        json.appendLiteral(&quot;null&quot;);
+    json.append(',');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;instructionTypeSet\&quot;:&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;instructionTypeSet\&quot;:&quot;);
</ins><span class="cx">     json.append(location-&gt;m_instructionTypeSet-&gt;toJSONString());
</span><del>-    json.append(&quot;,&quot;);
</del><ins>+    json.append(',');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;isOverflown\&quot;:&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;isOverflown\&quot;:&quot;);
</ins><span class="cx">     if (location-&gt;m_instructionTypeSet-&gt;isOverflown() || (location-&gt;m_globalTypeSet &amp;&amp; location-&gt;m_globalTypeSet-&gt;isOverflown()))
</span><del>-        json.append(&quot;true&quot;);
</del><ins>+        json.appendLiteral(&quot;true&quot;);
</ins><span class="cx">     else
</span><del>-        json.append(&quot;false&quot;);
</del><ins>+        json.appendLiteral(&quot;false&quot;);
</ins><span class="cx"> 
</span><span class="cx"> 
</span><del>-    json.append(&quot;}&quot;);
</del><ins>+    json.append('}');
</ins><span class="cx">     
</span><span class="cx">     return json.toString();
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceJavaScriptCoreruntimeTypeSetcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/runtime/TypeSet.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/runtime/TypeSet.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/JavaScriptCore/runtime/TypeSet.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -250,73 +250,73 @@
</span><span class="cx">     //     structures: 'Array&lt;JSON&lt;StructureShape&gt;&gt;'
</span><span class="cx"> 
</span><span class="cx">     StringBuilder json;
</span><del>-    json.append(&quot;{&quot;);
</del><ins>+    json.append('{');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;displayTypeName\&quot;:&quot;);
-    json.append(&quot;\&quot;&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;displayTypeName\&quot;:&quot;);
+    json.append('&quot;');
</ins><span class="cx">     json.append(displayName());
</span><del>-    json.append(&quot;\&quot;&quot;);
-    json.append(&quot;,&quot;);
</del><ins>+    json.append('&quot;');
+    json.append(',');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;primitiveTypeNames\&quot;:&quot;);
-    json.append(&quot;[&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;primitiveTypeNames\&quot;:&quot;);
+    json.append('[');
</ins><span class="cx">     bool hasAnItem = false;
</span><span class="cx">     if (m_seenTypes &amp; TypeUndefined) {
</span><span class="cx">         hasAnItem = true;
</span><del>-        json.append(&quot;\&quot;Undefined\&quot;&quot;);
</del><ins>+        json.appendLiteral(&quot;\&quot;Undefined\&quot;&quot;);
</ins><span class="cx">     }
</span><span class="cx">     if (m_seenTypes &amp; TypeNull) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><del>-        json.append(&quot;\&quot;Null\&quot;&quot;);
</del><ins>+        json.appendLiteral(&quot;\&quot;Null\&quot;&quot;);
</ins><span class="cx">     }
</span><span class="cx">     if (m_seenTypes &amp; TypeBoolean) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><del>-        json.append(&quot;\&quot;Boolean\&quot;&quot;);
</del><ins>+        json.appendLiteral(&quot;\&quot;Boolean\&quot;&quot;);
</ins><span class="cx">     }
</span><span class="cx">     if (m_seenTypes &amp; TypeMachineInt) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><del>-        json.append(&quot;\&quot;Integer\&quot;&quot;);
</del><ins>+        json.appendLiteral(&quot;\&quot;Integer\&quot;&quot;);
</ins><span class="cx">     }
</span><span class="cx">     if (m_seenTypes &amp; TypeNumber) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><del>-        json.append(&quot;\&quot;Number\&quot;&quot;);
</del><ins>+        json.appendLiteral(&quot;\&quot;Number\&quot;&quot;);
</ins><span class="cx">     }
</span><span class="cx">     if (m_seenTypes &amp; TypeString) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><del>-        json.append(&quot;\&quot;String\&quot;&quot;);
</del><ins>+        json.appendLiteral(&quot;\&quot;String\&quot;&quot;);
</ins><span class="cx">     }
</span><span class="cx">     if (m_seenTypes &amp; TypeSymbol) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><del>-        json.append(&quot;\&quot;Symbol\&quot;&quot;);
</del><ins>+        json.appendLiteral(&quot;\&quot;Symbol\&quot;&quot;);
</ins><span class="cx">     }
</span><del>-    json.append(&quot;]&quot;);
</del><ins>+    json.append(']');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;,&quot;);
</del><ins>+    json.append(',');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;structures\&quot;:&quot;);
-    json.append(&quot;[&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;structures\&quot;:&quot;);
+    json.append('[');
</ins><span class="cx">     hasAnItem = false;
</span><span class="cx">     for (size_t i = 0; i &lt; m_structureHistory.size(); i++) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><span class="cx">         json.append(m_structureHistory[i]-&gt;toJSONString());
</span><span class="cx">     }
</span><del>-    json.append(&quot;]&quot;);
</del><ins>+    json.append(']');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;}&quot;);
</del><ins>+    json.append('}');
</ins><span class="cx">     return json.toString();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -359,7 +359,7 @@
</span><span class="cx"> 
</span><span class="cx">     if (m_proto) {
</span><span class="cx">         builder.append(':');
</span><del>-        builder.append(&quot;__proto__&quot;);
</del><ins>+        builder.appendLiteral(&quot;__proto__&quot;);
</ins><span class="cx">         builder.append(m_proto-&gt;propertyHash());
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="lines">@@ -409,13 +409,13 @@
</span><span class="cx">         for (auto it = curShape-&gt;m_fields.begin(), end = curShape-&gt;m_fields.end(); it != end; ++it) {
</span><span class="cx">             String prop((*it).get());
</span><span class="cx">             representation.append(prop);
</span><del>-            representation.append(&quot;, &quot;);
</del><ins>+            representation.appendLiteral(&quot;, &quot;);
</ins><span class="cx">         }
</span><span class="cx"> 
</span><span class="cx">         if (curShape-&gt;m_proto) {
</span><del>-            String prot = makeString(&quot;__proto__ [&quot;, curShape-&gt;m_proto-&gt;m_constructorName, ']');
-            representation.append(prot);
-            representation.append(&quot;, &quot;);
</del><ins>+            representation.appendLiteral(&quot;__proto__ [&quot;);
+            representation.append(curShape-&gt;m_proto-&gt;m_constructorName);
+            representation.appendLiteral(&quot;], &quot;);
</ins><span class="cx">         }
</span><span class="cx"> 
</span><span class="cx">         curShape = curShape-&gt;m_proto;
</span><span class="lines">@@ -438,60 +438,60 @@
</span><span class="cx">     //     proto: 'JSON&lt;StructureShape&gt; | null'
</span><span class="cx"> 
</span><span class="cx">     StringBuilder json;
</span><del>-    json.append(&quot;{&quot;);
</del><ins>+    json.append('{');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;constructorName\&quot;:&quot;);
-    json.append(&quot;\&quot;&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;constructorName\&quot;:&quot;);
+    json.append('&quot;');
</ins><span class="cx">     json.append(m_constructorName);
</span><del>-    json.append(&quot;\&quot;&quot;);
-    json.append(&quot;,&quot;);
</del><ins>+    json.append('&quot;');
+    json.append(',');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;isInDictionaryMode\&quot;:&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;isInDictionaryMode\&quot;:&quot;);
</ins><span class="cx">     if (m_isInDictionaryMode)
</span><del>-        json.append(&quot;true&quot;);
</del><ins>+        json.appendLiteral(&quot;true&quot;);
</ins><span class="cx">     else
</span><del>-        json.append(&quot;false&quot;);
-    json.append(&quot;,&quot;);
</del><ins>+        json.appendLiteral(&quot;false&quot;);
+    json.append(',');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;fields\&quot;:&quot;);
-    json.append(&quot;[&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;fields\&quot;:&quot;);
+    json.append('[');
</ins><span class="cx">     bool hasAnItem = false;
</span><span class="cx">     for (auto it = m_fields.begin(), end = m_fields.end(); it != end; ++it) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><span class="cx"> 
</span><span class="cx">         String fieldName((*it).get());
</span><del>-        json.append(&quot;\&quot;&quot;);
</del><ins>+        json.append('&quot;');
</ins><span class="cx">         json.append(fieldName);
</span><del>-        json.append(&quot;\&quot;&quot;);
</del><ins>+        json.append('&quot;');
</ins><span class="cx">     }
</span><del>-    json.append(&quot;]&quot;);
-    json.append(&quot;,&quot;);
</del><ins>+    json.append(']');
+    json.append(',');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;optionalFields\&quot;:&quot;);
-    json.append(&quot;[&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;optionalFields\&quot;:&quot;);
+    json.append('[');
</ins><span class="cx">     hasAnItem = false;
</span><span class="cx">     for (auto it = m_optionalFields.begin(), end = m_optionalFields.end(); it != end; ++it) {
</span><span class="cx">         if (hasAnItem)
</span><del>-            json.append(&quot;,&quot;);
</del><ins>+            json.append(',');
</ins><span class="cx">         hasAnItem = true;
</span><span class="cx"> 
</span><span class="cx">         String fieldName((*it).get());
</span><del>-        json.append(&quot;\&quot;&quot;);
</del><ins>+        json.append('&quot;');
</ins><span class="cx">         json.append(fieldName);
</span><del>-        json.append(&quot;\&quot;&quot;);
</del><ins>+        json.append('&quot;');
</ins><span class="cx">     }
</span><del>-    json.append(&quot;]&quot;);
-    json.append(&quot;,&quot;);
</del><ins>+    json.append(']');
+    json.append(',');
</ins><span class="cx"> 
</span><del>-    json.append(&quot;\&quot;proto\&quot;:&quot;);
</del><ins>+    json.appendLiteral(&quot;\&quot;proto\&quot;:&quot;);
</ins><span class="cx">     if (m_proto)
</span><span class="cx">         json.append(m_proto-&gt;toJSONString());
</span><span class="cx">     else
</span><del>-        json.append(&quot;null&quot;);
</del><ins>+        json.appendLiteral(&quot;null&quot;);
</ins><span class="cx"> 
</span><del>-    json.append(&quot;}&quot;);
</del><ins>+    json.append('}');
</ins><span class="cx"> 
</span><span class="cx">     return json.toString();
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/ChangeLog        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -1,3 +1,46 @@
</span><ins>+2015-04-20  Joseph Pecoraro  &lt;pecoraro@apple.com&gt;
+
+        Cleanup some StringBuilder use
+        https://bugs.webkit.org/show_bug.cgi?id=143550
+
+        Reviewed by Darin Adler.
+
+        * Modules/plugins/YouTubePluginReplacement.cpp:
+        (WebCore::YouTubePluginReplacement::youTubeURL):
+        * css/CSSAnimationTriggerScrollValue.cpp:
+        (WebCore::CSSAnimationTriggerScrollValue::customCSSText):
+        * css/CSSCanvasValue.cpp:
+        (WebCore::CSSCanvasValue::customCSSText):
+        * html/HTMLCanvasElement.cpp:
+        (WebCore::HTMLCanvasElement::createImageBuffer):
+        * page/CaptionUserPreferencesMediaAF.cpp:
+        (WebCore::CaptionUserPreferencesMediaAF::captionsWindowCSS):
+        (WebCore::CaptionUserPreferencesMediaAF::windowRoundedCornerRadiusCSS):
+        (WebCore::CaptionUserPreferencesMediaAF::cssPropertyWithTextEdgeColor):
+        (WebCore::CaptionUserPreferencesMediaAF::colorPropertyCSS):
+        (WebCore::CaptionUserPreferencesMediaAF::captionsDefaultFontCSS):
+        (WebCore::CaptionUserPreferencesMediaAF::captionsStyleSheetOverride):
+        * page/EventSource.cpp:
+        (WebCore::EventSource::didReceiveResponse):
+        * page/PageSerializer.cpp:
+        (WebCore::PageSerializer::serializeCSSStyleSheet):
+        * platform/graphics/OpenGLShims.cpp:
+        (WebCore::lookupOpenGLFunctionAddress):
+        * platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp:
+        (WebCore::InbandTextTrackPrivateAVF::processCueAttributes):
+        * platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp:
+        (WebCore::generateHashedName):
+        * platform/text/DateTimeFormat.cpp:
+        (WebCore::DateTimeFormat::quoteAndAppendLiteral):
+        * rendering/RenderLayerCompositor.cpp:
+        (WebCore::RenderLayerCompositor::logLayerInfo):
+        * rendering/RenderTreeAsText.cpp:
+        (WebCore::writeRenderRegionList):
+        * testing/MicroTaskTest.cpp:
+        (WebCore::MicroTaskTest::run):
+        * testing/MockContentFilterSettings.cpp:
+        (WebCore::MockContentFilterSettings::unblockRequestURL):
+
</ins><span class="cx"> 2015-04-20  Said Abou-Hallawa  &lt;sabouhallawa@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         SVGFitToViewBox::viewBoxToViewTransform() has to count for zero physical width and height before calling SVGPreserveAspectRatio::getCTM()
</span></span></pre></div>
<a id="trunkSourceWebCoreModulespluginsYouTubePluginReplacementcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/plugins/YouTubePluginReplacement.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/plugins/YouTubePluginReplacement.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/Modules/plugins/YouTubePluginReplacement.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -326,13 +326,13 @@
</span><span class="cx">     // See: &lt;rdar://problem/11535155&gt;
</span><span class="cx">     StringBuilder finalURL;
</span><span class="cx">     if (isYouTubeShortenedURL)
</span><del>-        finalURL.append(&quot;http://www.youtube.com&quot;);
</del><ins>+        finalURL.appendLiteral(&quot;http://www.youtube.com&quot;);
</ins><span class="cx">     else
</span><span class="cx">         finalURL.append(srcURLPrefix);
</span><span class="cx">     finalURL.appendLiteral(&quot;/embed/&quot;);
</span><span class="cx">     finalURL.append(videoID);
</span><span class="cx">     if (!query.isEmpty()) {
</span><del>-        finalURL.appendLiteral(&quot;?&quot;);
</del><ins>+        finalURL.append('?');
</ins><span class="cx">         finalURL.append(query);
</span><span class="cx">     }
</span><span class="cx">     return finalURL.toString();
</span></span></pre></div>
<a id="trunkSourceWebCorecssCSSAnimationTriggerScrollValuecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/css/CSSAnimationTriggerScrollValue.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/CSSAnimationTriggerScrollValue.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/css/CSSAnimationTriggerScrollValue.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -35,10 +35,10 @@
</span><span class="cx"> String CSSAnimationTriggerScrollValue::customCSSText() const
</span><span class="cx"> {
</span><span class="cx">     StringBuilder result;
</span><del>-    result.append(&quot;container-scroll(&quot;);
</del><ins>+    result.appendLiteral(&quot;container-scroll(&quot;);
</ins><span class="cx">     result.append(m_startValue-&gt;cssText());
</span><span class="cx">     if (m_endValue) {
</span><del>-        result.append(&quot;, &quot;);
</del><ins>+        result.appendLiteral(&quot;, &quot;);
</ins><span class="cx">         result.append(m_endValue-&gt;cssText());
</span><span class="cx">     }
</span><span class="cx">     result.append(')');
</span></span></pre></div>
<a id="trunkSourceWebCorecssCSSCanvasValuecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/css/CSSCanvasValue.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/css/CSSCanvasValue.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/css/CSSCanvasValue.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -28,7 +28,6 @@
</span><span class="cx"> 
</span><span class="cx"> #include &quot;ImageBuffer.h&quot;
</span><span class="cx"> #include &quot;RenderElement.h&quot;
</span><del>-#include &lt;wtf/text/StringBuilder.h&gt;
</del><span class="cx"> 
</span><span class="cx"> namespace WebCore {
</span><span class="cx"> 
</span><span class="lines">@@ -40,11 +39,7 @@
</span><span class="cx"> 
</span><span class="cx"> String CSSCanvasValue::customCSSText() const
</span><span class="cx"> {
</span><del>-    StringBuilder result;
-    result.appendLiteral(&quot;-webkit-canvas(&quot;);
-    result.append(m_name);
-    result.append(')');
-    return result.toString();
</del><ins>+    return makeString(&quot;-webkit-canvas(&quot;, m_name, ')');
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void CSSCanvasValue::canvasChanged(HTMLCanvasElement&amp;, const FloatRect&amp; changedRect)
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlHTMLCanvasElementcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/HTMLCanvasElement.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/HTMLCanvasElement.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/html/HTMLCanvasElement.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -558,9 +558,9 @@
</span><span class="cx"> 
</span><span class="cx">     if (deviceSize.width() * deviceSize.height() &gt; MaxCanvasArea) {
</span><span class="cx">         StringBuilder stringBuilder;
</span><del>-        stringBuilder.append(&quot;Canvas area exceeds the maximum limit (width * height &gt; &quot;);
</del><ins>+        stringBuilder.appendLiteral(&quot;Canvas area exceeds the maximum limit (width * height &gt; &quot;);
</ins><span class="cx">         stringBuilder.appendNumber(MaxCanvasArea);
</span><del>-        stringBuilder.append(&quot;).&quot;);
</del><ins>+        stringBuilder.appendLiteral(&quot;).&quot;);
</ins><span class="cx">         document().addConsoleMessage(MessageSource::JS, MessageLevel::Warning, stringBuilder.toString());
</span><span class="cx">         return;
</span><span class="cx">     }
</span></span></pre></div>
<a id="trunkSourceWebCorepageCaptionUserPreferencesMediaAFcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -234,12 +234,7 @@
</span><span class="cx">     if (!opacity)
</span><span class="cx">         return windowStyle;
</span><span class="cx"> 
</span><del>-    StringBuilder builder;
-    builder.append(windowStyle);
-    builder.append(getPropertyNameString(CSSPropertyPadding));
-    builder.append(&quot;: .4em !important;&quot;);
-
-    return builder.toString();
</del><ins>+    return makeString(windowStyle, getPropertyNameString(CSSPropertyPadding), &quot;: .4em !important;&quot;);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> String CaptionUserPreferencesMediaAF::captionsBackgroundCSS() const
</span><span class="lines">@@ -300,7 +295,7 @@
</span><span class="cx">     builder.append(getPropertyNameString(CSSPropertyBorderRadius));
</span><span class="cx">     builder.append(String::format(&quot;:%.02fpx&quot;, radius));
</span><span class="cx">     if (behavior == kMACaptionAppearanceBehaviorUseValue)
</span><del>-        builder.append(&quot; !important&quot;);
</del><ins>+        builder.appendLiteral(&quot; !important&quot;);
</ins><span class="cx">     builder.append(';');
</span><span class="cx"> 
</span><span class="cx">     return builder.toString();
</span><span class="lines">@@ -327,7 +322,7 @@
</span><span class="cx">     builder.append(' ');
</span><span class="cx">     builder.append(captionsEdgeColorForTextColor(textColor).serialized());
</span><span class="cx">     if (important)
</span><del>-        builder.append(&quot; !important&quot;);
</del><ins>+        builder.appendLiteral(&quot; !important&quot;);
</ins><span class="cx">     builder.append(';');
</span><span class="cx">     
</span><span class="cx">     return builder.toString();
</span><span class="lines">@@ -341,7 +336,7 @@
</span><span class="cx">     builder.append(':');
</span><span class="cx">     builder.append(color.serialized());
</span><span class="cx">     if (important)
</span><del>-        builder.append(&quot; !important&quot;);
</del><ins>+        builder.appendLiteral(&quot; !important&quot;);
</ins><span class="cx">     builder.append(';');
</span><span class="cx">     
</span><span class="cx">     return builder.toString();
</span><span class="lines">@@ -399,11 +394,11 @@
</span><span class="cx">     StringBuilder builder;
</span><span class="cx">     
</span><span class="cx">     builder.append(getPropertyNameString(CSSPropertyFontFamily));
</span><del>-    builder.append(&quot;: \&quot;&quot;);
</del><ins>+    builder.appendLiteral(&quot;: \&quot;&quot;);
</ins><span class="cx">     builder.append(static_cast&lt;CFStringRef&gt;(name.get()));
</span><span class="cx">     builder.append('&quot;');
</span><span class="cx">     if (behavior == kMACaptionAppearanceBehaviorUseValue)
</span><del>-        builder.append(&quot; !important&quot;);
</del><ins>+        builder.appendLiteral(&quot; !important&quot;);
</ins><span class="cx">     builder.append(';');
</span><span class="cx">     
</span><span class="cx">     return builder.toString();
</span><span class="lines">@@ -490,7 +485,7 @@
</span><span class="cx">     String fontName = captionsDefaultFontCSS();
</span><span class="cx">     String background = captionsBackgroundCSS();
</span><span class="cx">     if (!background.isEmpty() || !captionsColor.isEmpty() || !edgeStyle.isEmpty() || !fontName.isEmpty()) {
</span><del>-        captionsOverrideStyleSheet.append(&quot; video::&quot;);
</del><ins>+        captionsOverrideStyleSheet.appendLiteral(&quot; video::&quot;);
</ins><span class="cx">         captionsOverrideStyleSheet.append(TextTrackCue::cueShadowPseudoId());
</span><span class="cx">         captionsOverrideStyleSheet.append('{');
</span><span class="cx">         
</span><span class="lines">@@ -509,7 +504,7 @@
</span><span class="cx">     String windowColor = captionsWindowCSS();
</span><span class="cx">     String windowCornerRadius = windowRoundedCornerRadiusCSS();
</span><span class="cx">     if (!windowColor.isEmpty() || !windowCornerRadius.isEmpty()) {
</span><del>-        captionsOverrideStyleSheet.append(&quot; video::&quot;);
</del><ins>+        captionsOverrideStyleSheet.appendLiteral(&quot; video::&quot;);
</ins><span class="cx">         captionsOverrideStyleSheet.append(VTTCue::cueBackdropShadowPseudoId());
</span><span class="cx">         captionsOverrideStyleSheet.append('{');
</span><span class="cx">         
</span></span></pre></div>
<a id="trunkSourceWebCorepageEventSourcecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/EventSource.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/EventSource.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/page/EventSource.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -53,7 +53,6 @@
</span><span class="cx"> #include &quot;SerializedScriptValue.h&quot;
</span><span class="cx"> #include &quot;TextResourceDecoder.h&quot;
</span><span class="cx"> #include &quot;ThreadableLoader.h&quot;
</span><del>-#include &lt;wtf/text/StringBuilder.h&gt;
</del><span class="cx"> 
</span><span class="cx"> namespace WebCore {
</span><span class="cx"> 
</span><span class="lines">@@ -223,22 +222,16 @@
</span><span class="cx">         // If we have a charset, the only allowed value is UTF-8 (case-insensitive).
</span><span class="cx">         responseIsValid = charset.isEmpty() || equalIgnoringCase(charset, &quot;UTF-8&quot;);
</span><span class="cx">         if (!responseIsValid) {
</span><del>-            StringBuilder message;
-            message.appendLiteral(&quot;EventSource's response has a charset (\&quot;&quot;);
-            message.append(charset);
-            message.appendLiteral(&quot;\&quot;) that is not UTF-8. Aborting the connection.&quot;);
</del><ins>+            String message = makeString(&quot;EventSource's response has a charset (\&quot;&quot;, charset, &quot;\&quot;) that is not UTF-8. Aborting the connection.&quot;);
</ins><span class="cx">             // FIXME: We are missing the source line.
</span><del>-            scriptExecutionContext()-&gt;addConsoleMessage(MessageSource::JS, MessageLevel::Error, message.toString());
</del><ins>+            scriptExecutionContext()-&gt;addConsoleMessage(MessageSource::JS, MessageLevel::Error, message);
</ins><span class="cx">         }
</span><span class="cx">     } else {
</span><span class="cx">         // To keep the signal-to-noise ratio low, we only log 200-response with an invalid MIME type.
</span><span class="cx">         if (statusCode == 200 &amp;&amp; !mimeTypeIsValid) {
</span><del>-            StringBuilder message;
-            message.appendLiteral(&quot;EventSource's response has a MIME type (\&quot;&quot;);
-            message.append(response.mimeType());
-            message.appendLiteral(&quot;\&quot;) that is not \&quot;text/event-stream\&quot;. Aborting the connection.&quot;);
</del><ins>+            String message = makeString(&quot;EventSource's response has a MIME type (\&quot;&quot;, response.mimeType(), &quot;\&quot;) that is not \&quot;text/event-stream\&quot;. Aborting the connection.&quot;);
</ins><span class="cx">             // FIXME: We are missing the source line.
</span><del>-            scriptExecutionContext()-&gt;addConsoleMessage(MessageSource::JS, MessageLevel::Error, message.toString());
</del><ins>+            scriptExecutionContext()-&gt;addConsoleMessage(MessageSource::JS, MessageLevel::Error, message);
</ins><span class="cx">         }
</span><span class="cx">     }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCorepagePageSerializercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/PageSerializer.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/PageSerializer.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/page/PageSerializer.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -262,7 +262,7 @@
</span><span class="cx">         if (!itemText.isEmpty()) {
</span><span class="cx">             cssText.append(itemText);
</span><span class="cx">             if (i &lt; styleSheet-&gt;length() - 1)
</span><del>-                cssText.append(&quot;\n\n&quot;);
</del><ins>+                cssText.appendLiteral(&quot;\n\n&quot;);
</ins><span class="cx">         }
</span><span class="cx">         Document* document = styleSheet-&gt;ownerDocument();
</span><span class="cx">         // Some rules have resources associated with them that we need to retrieve.
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsOpenGLShimscpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/OpenGLShims.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/OpenGLShims.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/platform/graphics/OpenGLShims.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -70,26 +70,18 @@
</span><span class="cx">     if (target)
</span><span class="cx">         return target;
</span><span class="cx"> 
</span><del>-    String fullFunctionName(functionName);
-    fullFunctionName.append(&quot;ARB&quot;);
-    target = getProcAddress(fullFunctionName.utf8().data());
</del><ins>+    target = getProcAddress(makeString(functionName, &quot;ARB&quot;).characters8());
</ins><span class="cx">     if (target)
</span><span class="cx">         return target;
</span><span class="cx"> 
</span><del>-    fullFunctionName = functionName;
-    fullFunctionName.append(&quot;EXT&quot;);
-    target = getProcAddress(fullFunctionName.utf8().data());
</del><ins>+    target = getProcAddress(makeString(functionName, &quot;EXT&quot;).characters8());
</ins><span class="cx"> 
</span><span class="cx"> #if defined(GL_ES_VERSION_2_0)
</span><del>-    fullFunctionName = functionName;
-    fullFunctionName.append(&quot;ANGLE&quot;);
-    target = getProcAddress(fullFunctionName.utf8().data());
</del><ins>+    target = getProcAddress(makeString(functionName, &quot;ANGLE&quot;).characters8());
</ins><span class="cx">     if (target)
</span><span class="cx">         return target;
</span><span class="cx"> 
</span><del>-    fullFunctionName = functionName;
-    fullFunctionName.append(&quot;APPLE&quot;);
-    target = getProcAddress(fullFunctionName.utf8().data());
</del><ins>+    target = getProcAddress(makeString(functionName, &quot;APPLE&quot;).characters8());
</ins><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx">     // A null address is still a failure case.
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsavfoundationInbandTextTrackPrivateAVFcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/platform/graphics/avfoundation/InbandTextTrackPrivateAVF.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -158,7 +158,7 @@
</span><span class="cx">                 if (static_cast&lt;CFBooleanRef&gt;(value) != kCFBooleanTrue)
</span><span class="cx">                     continue;
</span><span class="cx"> 
</span><del>-                tagStart.append(&quot;&lt;b&gt;&quot;);
</del><ins>+                tagStart.appendLiteral(&quot;&lt;b&gt;&quot;);
</ins><span class="cx">                 tagEnd = &quot;&lt;/b&gt;&quot; + tagEnd;
</span><span class="cx">                 continue;
</span><span class="cx">             }
</span><span class="lines">@@ -167,7 +167,7 @@
</span><span class="cx">                 if (static_cast&lt;CFBooleanRef&gt;(value) != kCFBooleanTrue)
</span><span class="cx">                     continue;
</span><span class="cx"> 
</span><del>-                tagStart.append(&quot;&lt;i&gt;&quot;);
</del><ins>+                tagStart.appendLiteral(&quot;&lt;i&gt;&quot;);
</ins><span class="cx">                 tagEnd = &quot;&lt;/i&gt;&quot; + tagEnd;
</span><span class="cx">                 continue;
</span><span class="cx">             }
</span><span class="lines">@@ -176,7 +176,7 @@
</span><span class="cx">                 if (static_cast&lt;CFBooleanRef&gt;(value) != kCFBooleanTrue)
</span><span class="cx">                     continue;
</span><span class="cx"> 
</span><del>-                tagStart.append(&quot;&lt;u&gt;&quot;);
</del><ins>+                tagStart.appendLiteral(&quot;&lt;u&gt;&quot;);
</ins><span class="cx">                 tagEnd = &quot;&lt;/u&gt;&quot; + tagEnd;
</span><span class="cx">                 continue;
</span><span class="cx">             }
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsopenglGraphicsContext3DOpenGLCommoncpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/platform/graphics/opengl/GraphicsContext3DOpenGLCommon.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -851,7 +851,7 @@
</span><span class="cx">         return name;
</span><span class="cx">     uint64_t number = nameHashForShader(name.utf8().data(), name.length());
</span><span class="cx">     StringBuilder builder;
</span><del>-    builder.append(&quot;webgl_&quot;);
</del><ins>+    builder.appendLiteral(&quot;webgl_&quot;);
</ins><span class="cx">     appendUnsigned64AsHex(number, builder, Lowercase);
</span><span class="cx">     return builder.toString();
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformtextDateTimeFormatcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/text/DateTimeFormat.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/text/DateTimeFormat.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/platform/text/DateTimeFormat.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -265,7 +265,7 @@
</span><span class="cx"> 
</span><span class="cx">     for (unsigned i = 0; i &lt; literal.length(); ++i) {
</span><span class="cx">         if (literal[i] == '\'')
</span><del>-            buffer.append(&quot;''&quot;);
</del><ins>+            buffer.appendLiteral(&quot;''&quot;);
</ins><span class="cx">         else {
</span><span class="cx">             String escaped = literal.substring(i);
</span><span class="cx">             escaped.replace('\'', &quot;''&quot;);
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderLayerCompositorcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderLayerCompositor.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderLayerCompositor.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/rendering/RenderLayerCompositor.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -837,17 +837,17 @@
</span><span class="cx">         absoluteBounds.x().toFloat(), absoluteBounds.y().toFloat(), absoluteBounds.maxX().toFloat(), absoluteBounds.maxY().toFloat(),
</span><span class="cx">         backing-&gt;backingStoreMemoryEstimate() / 1024));
</span><span class="cx">     
</span><del>-    logString.append(&quot; (&quot;);
</del><ins>+    logString.appendLiteral(&quot; (&quot;);
</ins><span class="cx">     logString.append(logReasonsForCompositing(layer));
</span><del>-    logString.append(&quot;) &quot;);
</del><ins>+    logString.appendLiteral(&quot;) &quot;);
</ins><span class="cx"> 
</span><span class="cx">     if (backing-&gt;graphicsLayer()-&gt;contentsOpaque() || backing-&gt;paintsIntoCompositedAncestor()) {
</span><span class="cx">         logString.append('[');
</span><span class="cx">         if (backing-&gt;graphicsLayer()-&gt;contentsOpaque())
</span><del>-            logString.append(&quot;opaque&quot;);
</del><ins>+            logString.appendLiteral(&quot;opaque&quot;);
</ins><span class="cx">         if (backing-&gt;paintsIntoCompositedAncestor())
</span><del>-            logString.append(&quot;paints into ancestor&quot;);
-        logString.append(&quot;] &quot;);
</del><ins>+            logString.appendLiteral(&quot;paints into ancestor&quot;);
+        logString.appendLiteral(&quot;] &quot;);
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     logString.append(layer.name());
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderTreeAsTextcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderTreeAsText.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderTreeAsText.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/rendering/RenderTreeAsText.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -667,9 +667,9 @@
</span><span class="cx">             RenderElement* renderElementForRegion = isRenderNamedFlowFragment ? renderRegion-&gt;parent() : renderRegion;
</span><span class="cx">             if (renderElementForRegion-&gt;isPseudoElement()) {
</span><span class="cx">                 if (renderElementForRegion-&gt;element()-&gt;isBeforePseudoElement())
</span><del>-                    tagName.append(&quot;::before&quot;);
</del><ins>+                    tagName.appendLiteral(&quot;::before&quot;);
</ins><span class="cx">                 else if (renderElementForRegion-&gt;element()-&gt;isAfterPseudoElement())
</span><del>-                    tagName.append(&quot;::after&quot;);
</del><ins>+                    tagName.appendLiteral(&quot;::after&quot;);
</ins><span class="cx">             }
</span><span class="cx"> 
</span><span class="cx">             ts &lt;&lt; &quot; {&quot; &lt;&lt; tagName.toString() &lt;&lt; &quot;}&quot;;
</span></span></pre></div>
<a id="trunkSourceWebCoretestingMicroTaskTestcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/testing/MicroTaskTest.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/testing/MicroTaskTest.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/testing/MicroTaskTest.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -27,12 +27,8 @@
</span><span class="cx"> 
</span><span class="cx"> void MicroTaskTest::run()
</span><span class="cx"> {
</span><del>-    StringBuilder message;
-    message.append(&quot;MicroTask #&quot;);
-    message.append(String::number(m_testNumber));
-    message.append(&quot; has run.&quot;);
</del><span class="cx">     if (m_document)
</span><del>-        m_document-&gt;addConsoleMessage(MessageSource::JS, MessageLevel::Debug, message.toString());
</del><ins>+        m_document-&gt;addConsoleMessage(MessageSource::JS, MessageLevel::Debug, makeString(&quot;MicroTask #&quot;, String::number(m_testNumber), &quot; has run.&quot;));
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> } // namespace WebCore
</span></span></pre></div>
<a id="trunkSourceWebCoretestingMockContentFilterSettingscpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/testing/MockContentFilterSettings.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/testing/MockContentFilterSettings.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebCore/testing/MockContentFilterSettings.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -30,9 +30,7 @@
</span><span class="cx"> 
</span><span class="cx"> #include &quot;ContentFilter.h&quot;
</span><span class="cx"> #include &quot;ContentFilterUnblockHandler.h&quot;
</span><del>-#include &lt;mutex&gt;
</del><span class="cx"> #include &lt;wtf/NeverDestroyed.h&gt;
</span><del>-#include &lt;wtf/text/StringBuilder.h&gt;
</del><span class="cx"> 
</span><span class="cx"> namespace WebCore {
</span><span class="cx"> 
</span><span class="lines">@@ -49,15 +47,7 @@
</span><span class="cx"> 
</span><span class="cx"> const String&amp; MockContentFilterSettings::unblockRequestURL() const
</span><span class="cx"> {
</span><del>-    static LazyNeverDestroyed&lt;String&gt; unblockRequestURL;
-    static std::once_flag onceFlag;
-    std::call_once(onceFlag, [] {
-        StringBuilder unblockRequestURLBuilder;
-        unblockRequestURLBuilder.append(ContentFilter::urlScheme());
-        unblockRequestURLBuilder.append(&quot;://&quot;);
-        unblockRequestURLBuilder.append(unblockURLHost());
-        unblockRequestURL.construct(unblockRequestURLBuilder.toString());
-    });
</del><ins>+    static NeverDestroyed&lt;String&gt; unblockRequestURL = makeString(ContentFilter::urlScheme(), &quot;://&quot;, unblockURLHost());
</ins><span class="cx">     return unblockRequestURL;
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebKit2/ChangeLog        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -1,3 +1,23 @@
</span><ins>+2015-04-20  Joseph Pecoraro  &lt;pecoraro@apple.com&gt;
+
+        Cleanup some StringBuilder use
+        https://bugs.webkit.org/show_bug.cgi?id=143550
+
+        Reviewed by Darin Adler.
+
+        * DatabaseProcess/IndexedDB/sqlite/SQLiteIDBCursor.cpp:
+        (WebKit::buildObjectStoreStatement):
+        * DatabaseProcess/IndexedDB/sqlite/UniqueIDBDatabaseBackingStoreSQLite.cpp:
+        (WebKit::v2RecordsTableSchema):
+        * Shared/Databases/IndexedDB/IDBUtilities.cpp:
+        (WebKit::uniqueDatabaseIdentifier):
+        * UIProcess/API/APIUserScript.cpp:
+        (API::UserScript::generateUniqueURL):
+        * UIProcess/WebProcessPool.cpp:
+        (WebKit::WebProcessPool::didReceiveInvalidMessage):
+        * WebProcess/Databases/IndexedDB/WebIDBFactoryBackend.cpp:
+        (WebKit::combinedSecurityOriginIdentifier):
+
</ins><span class="cx"> 2015-04-20  Anders Carlsson  &lt;andersca@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Modify the WKWebsiteDataStore API to take a NSSet of types instead of a bitmask
</span></span></pre></div>
<a id="trunkSourceWebKit2DatabaseProcessIndexedDBsqliteSQLiteIDBCursorcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/DatabaseProcess/IndexedDB/sqlite/SQLiteIDBCursor.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/DatabaseProcess/IndexedDB/sqlite/SQLiteIDBCursor.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebKit2/DatabaseProcess/IndexedDB/sqlite/SQLiteIDBCursor.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -117,7 +117,7 @@
</span><span class="cx">     builder.appendLiteral(&quot; CAST(? AS TEXT) ORDER BY key&quot;);
</span><span class="cx"> 
</span><span class="cx">     if (cursorDirection == IndexedDB::CursorDirection::Prev || cursorDirection == IndexedDB::CursorDirection::PrevNoDuplicate)
</span><del>-        builder.append(&quot; DESC&quot;);
</del><ins>+        builder.appendLiteral(&quot; DESC&quot;);
</ins><span class="cx"> 
</span><span class="cx">     builder.append(';');
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2DatabaseProcessIndexedDBsqliteUniqueIDBDatabaseBackingStoreSQLitecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/DatabaseProcess/IndexedDB/sqlite/UniqueIDBDatabaseBackingStoreSQLite.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/DatabaseProcess/IndexedDB/sqlite/UniqueIDBDatabaseBackingStoreSQLite.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebKit2/DatabaseProcess/IndexedDB/sqlite/UniqueIDBDatabaseBackingStoreSQLite.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -64,10 +64,9 @@
</span><span class="cx"> static const String v2RecordsTableSchema(const String&amp; tableName)
</span><span class="cx"> {
</span><span class="cx">     StringBuilder builder;
</span><del>-    builder.append(&quot;CREATE TABLE &quot;);
</del><ins>+    builder.appendLiteral(&quot;CREATE TABLE &quot;);
</ins><span class="cx">     builder.append(tableName);
</span><del>-    builder.append(&quot; (objectStoreID INTEGER NOT NULL ON CONFLICT FAIL, key TEXT COLLATE IDBKEY NOT NULL ON CONFLICT FAIL, value NOT NULL ON CONFLICT FAIL)&quot;);
-
</del><ins>+    builder.appendLiteral(&quot; (objectStoreID INTEGER NOT NULL ON CONFLICT FAIL, key TEXT COLLATE IDBKEY NOT NULL ON CONFLICT FAIL, value NOT NULL ON CONFLICT FAIL)&quot;);
</ins><span class="cx">     return builder.toString();
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2SharedDatabasesIndexedDBIDBUtilitiescpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Shared/Databases/IndexedDB/IDBUtilities.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Shared/Databases/IndexedDB/IDBUtilities.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebKit2/Shared/Databases/IndexedDB/IDBUtilities.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -42,14 +42,14 @@
</span><span class="cx">     if (originString == &quot;null&quot;)
</span><span class="cx">         return String();
</span><span class="cx">     stringBuilder.append(originString);
</span><del>-    stringBuilder.append(&quot;_&quot;);
</del><ins>+    stringBuilder.append('_');
</ins><span class="cx"> 
</span><span class="cx">     originString = mainFrameOrigin.toString();
</span><span class="cx">     if (originString == &quot;null&quot;)
</span><span class="cx">         return String();
</span><span class="cx">     stringBuilder.append(originString);
</span><span class="cx"> 
</span><del>-    stringBuilder.append(&quot;_&quot;);
</del><ins>+    stringBuilder.append('_');
</ins><span class="cx">     stringBuilder.append(databaseName);
</span><span class="cx"> 
</span><span class="cx">     return stringBuilder.toString();
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPIAPIUserScriptcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/APIUserScript.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/APIUserScript.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebKit2/UIProcess/API/APIUserScript.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -40,7 +40,7 @@
</span><span class="cx"> WebCore::URL UserScript::generateUniqueURL()
</span><span class="cx"> {
</span><span class="cx">     StringBuilder urlStringBuilder;
</span><del>-    urlStringBuilder.append(&quot;user-script:&quot;);
</del><ins>+    urlStringBuilder.appendLiteral(&quot;user-script:&quot;);
</ins><span class="cx">     urlStringBuilder.appendNumber(generateIdentifier());
</span><span class="cx">     return WebCore::URL { WebCore::URL { }, urlStringBuilder.toString() };
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessWebProcessPoolcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebProcessPool.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/WebProcessPool.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebKit2/UIProcess/WebProcessPool.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -562,7 +562,7 @@
</span><span class="cx"> 
</span><span class="cx">     StringBuilder messageNameStringBuilder;
</span><span class="cx">     messageNameStringBuilder.append(messageReceiverName.data(), messageReceiverName.size());
</span><del>-    messageNameStringBuilder.append(&quot;.&quot;);
</del><ins>+    messageNameStringBuilder.append('.');
</ins><span class="cx">     messageNameStringBuilder.append(messageName.data(), messageName.size());
</span><span class="cx"> 
</span><span class="cx">     s_invalidMessageCallback(toAPI(API::String::create(messageNameStringBuilder.toString()).get()));
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessDatabasesIndexedDBWebIDBFactoryBackendcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/Databases/IndexedDB/WebIDBFactoryBackend.cpp (183030 => 183031)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/Databases/IndexedDB/WebIDBFactoryBackend.cpp        2015-04-20 22:05:52 UTC (rev 183030)
+++ trunk/Source/WebKit2/WebProcess/Databases/IndexedDB/WebIDBFactoryBackend.cpp        2015-04-20 22:07:31 UTC (rev 183031)
</span><span class="lines">@@ -70,7 +70,7 @@
</span><span class="cx">     if (originString == &quot;null&quot;)
</span><span class="cx">         return String();
</span><span class="cx">     stringBuilder.append(originString);
</span><del>-    stringBuilder.append(&quot;_&quot;);
</del><ins>+    stringBuilder.append('_');
</ins><span class="cx"> 
</span><span class="cx">     originString = mainFrameOrigin.toString();
</span><span class="cx">     if (originString == &quot;null&quot;)
</span></span></pre>
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