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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/198393">198393</a></dd>
<dt>Author</dt> <dd>darin@apple.com</dd>
<dt>Date</dt> <dd>2016-03-18 00:56:20 -0700 (Fri, 18 Mar 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>Disable Caches in Safari's Develop menu does not disable caches.
https://bugs.webkit.org/show_bug.cgi?id=64483

Reviewed by Antti Koivisto.

Source/WebCore:

Add a new setting, ResourceCachingDisabled, for use in future versions of Safari.

* history/PageCache.cpp:
(WebCore::canCachePage): Check resourceCachingDisabled and return false.
(WebCore::PageCache::take): Check resourceCachingDisabled, and return null.
(WebCore::PageCache::get): Ditto.

* loader/FrameLoader.cpp:
(WebCore::FrameLoader::subresourceCachePolicy): Check resourceCachingDisabled, and
request a reload.
(WebCore::FrameLoader::addExtraFieldsToRequest): Check resourceCachingDisabled, and
set the cache policy to trigger a reload.
* loader/cache/CachedResourceLoader.cpp:
(WebCore::CachedResourceLoader::cachePolicy): Check resourceCachingDisabled, and
request a reload.

* page/Settings.in: Added resourceCachingDisabled.

Source/WebKit/mac:

* WebView/WebPreferenceKeysPrivate.h: Added ResourceCachingDisabled.
* WebView/WebPreferences.mm:
(-[WebPreferences isResourceCachingDisabled]): Added.
(-[WebPreferences setResourceCachingDisabled:]): Added.
* WebView/WebPreferencesPrivate.h: Added resourceCachingDisabled.
* WebView/WebView.mm:
(-[WebView _preferencesChanged:]): Push resourceCachingDisabled into WebCore.

Source/WebKit2:

* Shared/WebPreferencesDefinitions.h: Added ResourceCachingDisabled.
* UIProcess/API/C/WKPreferences.cpp:
(WKPreferencesSetResourceCachingDisabled): Added.
(WKPreferencesGetResourceCachingDisabled): Added.
* UIProcess/API/C/WKPreferencesRefPrivate.h: Ditto.
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::updatePreferences): Push ResourceCachingDisabled setting
into WebCore.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorehistoryPageCachecpp">trunk/Source/WebCore/history/PageCache.cpp</a></li>
<li><a href="#trunkSourceWebCoreloaderFrameLoadercpp">trunk/Source/WebCore/loader/FrameLoader.cpp</a></li>
<li><a href="#trunkSourceWebCoreloadercacheCachedResourceLoadercpp">trunk/Source/WebCore/loader/cache/CachedResourceLoader.cpp</a></li>
<li><a href="#trunkSourceWebCorepageSettingsin">trunk/Source/WebCore/page/Settings.in</a></li>
<li><a href="#trunkSourceWebKitmacChangeLog">trunk/Source/WebKit/mac/ChangeLog</a></li>
<li><a href="#trunkSourceWebKitmacWebViewWebPreferenceKeysPrivateh">trunk/Source/WebKit/mac/WebView/WebPreferenceKeysPrivate.h</a></li>
<li><a href="#trunkSourceWebKitmacWebViewWebPreferencesmm">trunk/Source/WebKit/mac/WebView/WebPreferences.mm</a></li>
<li><a href="#trunkSourceWebKitmacWebViewWebPreferencesPrivateh">trunk/Source/WebKit/mac/WebView/WebPreferencesPrivate.h</a></li>
<li><a href="#trunkSourceWebKitmacWebViewWebViewmm">trunk/Source/WebKit/mac/WebView/WebView.mm</a></li>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2SharedWebPreferencesDefinitionsh">trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICWKPreferencescpp">trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICWKPreferencesRefPrivateh">trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h</a></li>
<li><a href="#trunkSourceWebKit2WebProcessWebPageWebPagecpp">trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebCore/ChangeLog        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -1,3 +1,28 @@
</span><ins>+2016-03-18  Darin Adler  &lt;darin@apple.com&gt;
+
+        Disable Caches in Safari's Develop menu does not disable caches.
+        https://bugs.webkit.org/show_bug.cgi?id=64483
+
+        Reviewed by Antti Koivisto.
+
+        Add a new setting, ResourceCachingDisabled, for use in future versions of Safari.
+
+        * history/PageCache.cpp:
+        (WebCore::canCachePage): Check resourceCachingDisabled and return false.
+        (WebCore::PageCache::take): Check resourceCachingDisabled, and return null.
+        (WebCore::PageCache::get): Ditto.
+
+        * loader/FrameLoader.cpp:
+        (WebCore::FrameLoader::subresourceCachePolicy): Check resourceCachingDisabled, and
+        request a reload.
+        (WebCore::FrameLoader::addExtraFieldsToRequest): Check resourceCachingDisabled, and
+        set the cache policy to trigger a reload.
+        * loader/cache/CachedResourceLoader.cpp:
+        (WebCore::CachedResourceLoader::cachePolicy): Check resourceCachingDisabled, and
+        request a reload.
+
+        * page/Settings.in: Added resourceCachingDisabled.
+
</ins><span class="cx"> 2016-03-18  Csaba Osztrogonác  &lt;ossy@webkit.org&gt;
</span><span class="cx"> 
</span><span class="cx">         [Mac][cmake] Unreviewed speculative buildfix. Just for fun.
</span></span></pre></div>
<a id="trunkSourceWebCorehistoryPageCachecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/history/PageCache.cpp (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/history/PageCache.cpp        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebCore/history/PageCache.cpp        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -193,7 +193,7 @@
</span><span class="cx">     DiagnosticLoggingClient&amp; diagnosticLoggingClient = mainFrame.diagnosticLoggingClient();
</span><span class="cx">     bool isCacheable = canCacheFrame(mainFrame, diagnosticLoggingClient, indentLevel + 1);
</span><span class="cx">     
</span><del>-    if (!page.settings().usesPageCache()) {
</del><ins>+    if (!page.settings().usesPageCache() || page.settings().resourceCachingDisabled()) {
</ins><span class="cx">         PCLOG(&quot;   -Page settings says b/f cache disabled&quot;);
</span><span class="cx">         logPageCacheFailureDiagnosticMessage(diagnosticLoggingClient, DiagnosticLoggingKeys::isDisabledKey());
</span><span class="cx">         isCacheable = false;
</span><span class="lines">@@ -423,7 +423,7 @@
</span><span class="cx">     m_items.remove(&amp;item);
</span><span class="cx">     std::unique_ptr&lt;CachedPage&gt; cachedPage = WTFMove(item.m_cachedPage);
</span><span class="cx"> 
</span><del>-    if (cachedPage-&gt;hasExpired()) {
</del><ins>+    if (cachedPage-&gt;hasExpired() || (page &amp;&amp; page-&gt;settings().resourceCachingDisabled())) {
</ins><span class="cx">         LOG(PageCache, &quot;Not restoring page for %s from back/forward cache because cache entry has expired&quot;, item.url().string().ascii().data());
</span><span class="cx">         logPageCacheFailureDiagnosticMessage(page, DiagnosticLoggingKeys::expiredKey());
</span><span class="cx">         return nullptr;
</span><span class="lines">@@ -441,7 +441,7 @@
</span><span class="cx">         return nullptr;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    if (cachedPage-&gt;hasExpired()) {
</del><ins>+    if (cachedPage-&gt;hasExpired() || (page &amp;&amp; page-&gt;settings().resourceCachingDisabled())) {
</ins><span class="cx">         LOG(PageCache, &quot;Not restoring page for %s from back/forward cache because cache entry has expired&quot;, item.url().string().ascii().data());
</span><span class="cx">         logPageCacheFailureDiagnosticMessage(page, DiagnosticLoggingKeys::expiredKey());
</span><span class="cx">         remove(item);
</span></span></pre></div>
<a id="trunkSourceWebCoreloaderFrameLoadercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/loader/FrameLoader.cpp (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/loader/FrameLoader.cpp        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebCore/loader/FrameLoader.cpp        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -2155,6 +2155,9 @@
</span><span class="cx">     
</span><span class="cx"> CachePolicy FrameLoader::subresourceCachePolicy() const
</span><span class="cx"> {
</span><ins>+    if (m_frame.settings().resourceCachingDisabled())
+        return CachePolicyReload;
+
</ins><span class="cx">     if (m_isComplete)
</span><span class="cx">         return CachePolicyVerify;
</span><span class="cx"> 
</span><span class="lines">@@ -2561,6 +2564,11 @@
</span><span class="cx"> 
</span><span class="cx"> void FrameLoader::addExtraFieldsToRequest(ResourceRequest&amp; request, FrameLoadType loadType, bool mainResource)
</span><span class="cx"> {
</span><ins>+    bool cachingDisabled = frame().settings().resourceCachingDisabled();
+
+    if (cachingDisabled)
+        request.setCachePolicy(ReloadIgnoringCacheData);
+
</ins><span class="cx">     // Don't set the cookie policy URL if it's already been set.
</span><span class="cx">     // But make sure to set it on all requests regardless of protocol, as it has significance beyond the cookie policy (&lt;rdar://problem/6616664&gt;).
</span><span class="cx">     if (request.firstPartyForCookies().isEmpty()) {
</span><span class="lines">@@ -2576,7 +2584,10 @@
</span><span class="cx"> 
</span><span class="cx">     applyUserAgent(request);
</span><span class="cx"> 
</span><del>-    if (!mainResource) {
</del><ins>+    if (cachingDisabled) {
+        // Cache policy was already set above in the non-HTTP-specific code.
+        loadType = FrameLoadType::ReloadFromOrigin;
+    } else if (!mainResource) {
</ins><span class="cx">         if (request.isConditional())
</span><span class="cx">             request.setCachePolicy(ReloadIgnoringCacheData);
</span><span class="cx">         else if (documentLoader()-&gt;isLoadingInAPISense()) {
</span><span class="lines">@@ -2613,7 +2624,7 @@
</span><span class="cx">             request.setHTTPHeaderField(HTTPHeaderName::Pragma, &quot;no-cache&quot;);
</span><span class="cx">         }
</span><span class="cx">     }
</span><del>-    
</del><ins>+
</ins><span class="cx">     if (mainResource)
</span><span class="cx">         request.setHTTPAccept(defaultAcceptHeader);
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreloadercacheCachedResourceLoadercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/loader/cache/CachedResourceLoader.cpp (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/loader/cache/CachedResourceLoader.cpp        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebCore/loader/cache/CachedResourceLoader.cpp        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -923,13 +923,17 @@
</span><span class="cx"> 
</span><span class="cx"> CachePolicy CachedResourceLoader::cachePolicy(CachedResource::Type type) const
</span><span class="cx"> {
</span><del>-    if (!frame())
</del><ins>+    Frame* frame = this-&gt;frame();
+    if (!frame)
</ins><span class="cx">         return CachePolicyVerify;
</span><span class="cx"> 
</span><ins>+    if (frame-&gt;settings().resourceCachingDisabled())
+        return CachePolicyReload;
+
</ins><span class="cx">     if (type != CachedResource::MainResource)
</span><del>-        return frame()-&gt;loader().subresourceCachePolicy();
</del><ins>+        return frame-&gt;loader().subresourceCachePolicy();
</ins><span class="cx">     
</span><del>-    switch (frame()-&gt;loader().loadType()) {
</del><ins>+    switch (frame-&gt;loader().loadType()) {
</ins><span class="cx">     case FrameLoadType::ReloadFromOrigin:
</span><span class="cx">     case FrameLoadType::Reload:
</span><span class="cx">         return CachePolicyReload;
</span></span></pre></div>
<a id="trunkSourceWebCorepageSettingsin"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/Settings.in (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/Settings.in        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebCore/page/Settings.in        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -251,3 +251,5 @@
</span><span class="cx"> # enforces all frame sandbox flags (see enum SandboxFlag in SecurityContext.h), and also disables &lt;meta http-equiv&gt;
</span><span class="cx"> # processing and subframe loading.
</span><span class="cx"> contentDispositionAttachmentSandboxEnabled initial=false
</span><ins>+
+resourceCachingDisabled initial=false
</ins></span></pre></div>
<a id="trunkSourceWebKitmacChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/ChangeLog (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/ChangeLog        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit/mac/ChangeLog        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -1,3 +1,18 @@
</span><ins>+2016-03-18  Darin Adler  &lt;darin@apple.com&gt;
+
+        Disable Caches in Safari's Develop menu does not disable caches.
+        https://bugs.webkit.org/show_bug.cgi?id=64483
+
+        Reviewed by Antti Koivisto.
+
+        * WebView/WebPreferenceKeysPrivate.h: Added ResourceCachingDisabled.
+        * WebView/WebPreferences.mm:
+        (-[WebPreferences isResourceCachingDisabled]): Added.
+        (-[WebPreferences setResourceCachingDisabled:]): Added.
+        * WebView/WebPreferencesPrivate.h: Added resourceCachingDisabled.
+        * WebView/WebView.mm:
+        (-[WebView _preferencesChanged:]): Push resourceCachingDisabled into WebCore.
+
</ins><span class="cx"> 2016-03-17  Csaba Osztrogonác  &lt;ossy@webkit.org&gt;
</span><span class="cx"> 
</span><span class="cx">         [cmake][Mac] Unreviewed speculative buildfix after r198088. Just for fun.
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebPreferenceKeysPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebPreferenceKeysPrivate.h (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebPreferenceKeysPrivate.h        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit/mac/WebView/WebPreferenceKeysPrivate.h        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -161,6 +161,7 @@
</span><span class="cx"> #define WebKitMediaKeysStorageDirectoryKey @&quot;WebKitMediaKeysStorageDirectory&quot;
</span><span class="cx"> #define WebKitShadowDOMEnabledPreferenceKey @&quot;WebKitShadowDOMEnabled&quot;
</span><span class="cx"> #define WebKitCustomElementsEnabledPreferenceKey @&quot;WebKitCustomElementsEnabled&quot;
</span><ins>+#define WebKitResourceCachingDisabledPreferenceKey @&quot;WebKitResourceCachingDisabled&quot;
</ins><span class="cx"> 
</span><span class="cx"> #if !TARGET_OS_IPHONE
</span><span class="cx"> // These are private both because callers should be using the cover methods and because the
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebPreferencesmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebPreferences.mm (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebPreferences.mm        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit/mac/WebView/WebPreferences.mm        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -704,7 +704,8 @@
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)_setUnsignedIntValue:(unsigned int)value forKey:(NSString *)key
</span><del>-{    if ([self _unsignedIntValueForKey:key] == value)
</del><ins>+{
+    if ([self _unsignedIntValueForKey:key] == value)
</ins><span class="cx">         return;
</span><span class="cx">     NSString *_key = KEY(key);
</span><span class="cx"> #if PLATFORM(IOS)
</span><span class="lines">@@ -2699,6 +2700,16 @@
</span><span class="cx">     [self _setBoolValue:flag forKey:WebKitCustomElementsEnabledPreferenceKey];
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+- (BOOL)isResourceCachingDisabled
+{
+    return [self _boolValueForKey:WebKitResourceCachingDisabledPreferenceKey];
+}
+
+- (void)setResourceCachingDisabled:(BOOL)flag
+{
+    [self _setBoolValue:flag forKey:WebKitResourceCachingDisabledPreferenceKey];
+}
+
</ins><span class="cx"> @end
</span><span class="cx"> 
</span><span class="cx"> @implementation WebPreferences (WebInternal)
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebPreferencesPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebPreferencesPrivate.h (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebPreferencesPrivate.h        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit/mac/WebView/WebPreferencesPrivate.h        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -484,5 +484,6 @@
</span><span class="cx"> @property (nonatomic) BOOL javaScriptMarkupEnabled;
</span><span class="cx"> @property (nonatomic) BOOL mediaDataLoadsAutomatically;
</span><span class="cx"> @property (nonatomic) BOOL attachmentElementEnabled;
</span><ins>+@property (nonatomic, getter=isResourceCachingDisabled) BOOL resourceCachingDisabled;
</ins><span class="cx"> 
</span><span class="cx"> @end
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebView.mm (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebView.mm        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit/mac/WebView/WebView.mm        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -2516,6 +2516,8 @@
</span><span class="cx"> #if ENABLE(ATTACHMENT_ELEMENT)
</span><span class="cx">     settings.setAttachmentElementEnabled([preferences attachmentElementEnabled]);
</span><span class="cx"> #endif
</span><ins>+
+    settings.setResourceCachingDisabled(preferences.resourceCachingDisabled);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> static inline IMP getMethod(id o, SEL s)
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit2/ChangeLog        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -1,3 +1,19 @@
</span><ins>+2016-03-18  Darin Adler  &lt;darin@apple.com&gt;
+
+        Disable Caches in Safari's Develop menu does not disable caches.
+        https://bugs.webkit.org/show_bug.cgi?id=64483
+
+        Reviewed by Antti Koivisto.
+
+        * Shared/WebPreferencesDefinitions.h: Added ResourceCachingDisabled.
+        * UIProcess/API/C/WKPreferences.cpp:
+        (WKPreferencesSetResourceCachingDisabled): Added.
+        (WKPreferencesGetResourceCachingDisabled): Added.
+        * UIProcess/API/C/WKPreferencesRefPrivate.h: Ditto.
+        * WebProcess/WebPage/WebPage.cpp:
+        (WebKit::WebPage::updatePreferences): Push ResourceCachingDisabled setting
+        into WebCore.
+
</ins><span class="cx"> 2016-03-18  Carlos Garcia Campos  &lt;cgarcia@igalia.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Unreviewed. Try to fix GTK+ debug build after r198364.
</span></span></pre></div>
<a id="trunkSourceWebKit2SharedWebPreferencesDefinitionsh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -227,6 +227,7 @@
</span><span class="cx">     macro(MockCaptureDevicesEnabled, mockCaptureDevicesEnabled, Bool, bool, false) \
</span><span class="cx">     macro(ShadowDOMEnabled, shadowDOMEnabled, Bool, bool, true) \
</span><span class="cx">     macro(CustomElementsEnabled, customElementsEnabled, Bool, bool, false) \
</span><ins>+    macro(ResourceCachingDisabled, resourceCachingDisabled, Bool, bool, false) \
</ins><span class="cx">     FOR_EACH_ADDITIONAL_WEBKIT_BOOL_PREFERENCE(macro) \
</span><span class="cx">     \
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKPreferencescpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -1506,3 +1506,13 @@
</span><span class="cx"> {
</span><span class="cx">     return toImpl(preferencesRef)-&gt;shadowDOMEnabled();
</span><span class="cx"> }
</span><ins>+
+void WKPreferencesSetResourceCachingDisabled(WKPreferencesRef preferencesRef, bool flag)
+{
+    toImpl(preferencesRef)-&gt;setResourceCachingDisabled(flag);
+}
+
+bool WKPreferencesGetResourceCachingDisabled(WKPreferencesRef preferencesRef)
+{
+    return toImpl(preferencesRef)-&gt;resourceCachingDisabled();
+}
</ins></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKPreferencesRefPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -419,6 +419,10 @@
</span><span class="cx"> WK_EXPORT void WKPreferencesSetCustomElementsEnabled(WKPreferencesRef, bool flag);
</span><span class="cx"> WK_EXPORT bool WKPreferencesGetCustomElementsEnabled(WKPreferencesRef);
</span><span class="cx"> 
</span><ins>+// Defaults to false
+WK_EXPORT void WKPreferencesSetResourceCachingDisabled(WKPreferencesRef, bool flag);
+WK_EXPORT bool WKPreferencesGetResourceCachingDisabled(WKPreferencesRef);
+
</ins><span class="cx"> #ifdef __cplusplus
</span><span class="cx"> }
</span><span class="cx"> #endif
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebPageWebPagecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp (198392 => 198393)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp        2016-03-18 07:41:54 UTC (rev 198392)
+++ trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp        2016-03-18 07:56:20 UTC (rev 198393)
</span><span class="lines">@@ -3045,6 +3045,8 @@
</span><span class="cx"> 
</span><span class="cx">     settings.setShouldDispatchJavaScriptWindowOnErrorEvents(true);
</span><span class="cx"> 
</span><ins>+    settings.setResourceCachingDisabled(store.getBoolValueForKey(WebPreferencesKey::resourceCachingDisabledKey()));
+
</ins><span class="cx"> #if USE(APPLE_INTERNAL_SDK)
</span><span class="cx"> #include &lt;WebKitAdditions/WebPagePreferences.cpp&gt;
</span><span class="cx"> #endif
</span></span></pre>
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