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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/209073">209073</a></dd>
<dt>Author</dt> <dd>simon.fraser@apple.com</dd>
<dt>Date</dt> <dd>2016-11-29 09:16:08 -0800 (Tue, 29 Nov 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>intersection-observer-entry-interface.html test fails on the bots
https://bugs.webkit.org/show_bug.cgi?id=165133

Reviewed by Darin Adler.

Tests that enabled Intersection Observer via &lt;!-- webkit-test-runner [ enableIntersectionObserver=true ] --&gt;
would fail sometimes, because TestController::ensureViewSupportsOptionsForTest() failed to check
to see if this option required creating a new web view, so would just use the old view without
even resetting preferences.

In general, TestController doesn't distinguish properly between options that require the creation
of a new view (like mock scrollbars), and those that can be simply reset as resetPreferencesToConsistentValues()
does.

Do the easy fix of having viewSupportsOptions() check options.enableIntersectionObserver. We should probably
just call resetPreferencesToConsistentValues() even when re-use the same view.

* WebKitTestRunner/TestController.cpp:
(WTR::TestController::resetPreferencesToConsistentValues):
* WebKitTestRunner/ios/PlatformWebViewIOS.mm:
(WTR::PlatformWebView::viewSupportsOptions):
* WebKitTestRunner/mac/PlatformWebViewMac.mm:
(WTR::PlatformWebView::viewSupportsOptions):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkToolsChangeLog">trunk/Tools/ChangeLog</a></li>
<li><a href="#trunkToolsWebKitTestRunnerTestControllercpp">trunk/Tools/WebKitTestRunner/TestController.cpp</a></li>
<li><a href="#trunkToolsWebKitTestRunneriosPlatformWebViewIOSmm">trunk/Tools/WebKitTestRunner/ios/PlatformWebViewIOS.mm</a></li>
<li><a href="#trunkToolsWebKitTestRunnermacPlatformWebViewMacmm">trunk/Tools/WebKitTestRunner/mac/PlatformWebViewMac.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkToolsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Tools/ChangeLog (209072 => 209073)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/ChangeLog        2016-11-29 17:14:45 UTC (rev 209072)
+++ trunk/Tools/ChangeLog        2016-11-29 17:16:08 UTC (rev 209073)
</span><span class="lines">@@ -1,3 +1,29 @@
</span><ins>+2016-11-29  Simon Fraser  &lt;simon.fraser@apple.com&gt;
+
+        intersection-observer-entry-interface.html test fails on the bots
+        https://bugs.webkit.org/show_bug.cgi?id=165133
+
+        Reviewed by Darin Adler.
+        
+        Tests that enabled Intersection Observer via &lt;!-- webkit-test-runner [ enableIntersectionObserver=true ] --&gt;
+        would fail sometimes, because TestController::ensureViewSupportsOptionsForTest() failed to check
+        to see if this option required creating a new web view, so would just use the old view without
+        even resetting preferences.
+        
+        In general, TestController doesn't distinguish properly between options that require the creation
+        of a new view (like mock scrollbars), and those that can be simply reset as resetPreferencesToConsistentValues()
+        does.
+        
+        Do the easy fix of having viewSupportsOptions() check options.enableIntersectionObserver. We should probably
+        just call resetPreferencesToConsistentValues() even when re-use the same view.
+        
+        * WebKitTestRunner/TestController.cpp:
+        (WTR::TestController::resetPreferencesToConsistentValues):
+        * WebKitTestRunner/ios/PlatformWebViewIOS.mm:
+        (WTR::PlatformWebView::viewSupportsOptions):
+        * WebKitTestRunner/mac/PlatformWebViewMac.mm:
+        (WTR::PlatformWebView::viewSupportsOptions):
+
</ins><span class="cx"> 2016-11-28  Ryan Haddad  &lt;ryanhaddad@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Unreviewed, rolling out r209008.
</span></span></pre></div>
<a id="trunkToolsWebKitTestRunnerTestControllercpp"></a>
<div class="modfile"><h4>Modified: trunk/Tools/WebKitTestRunner/TestController.cpp (209072 => 209073)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/WebKitTestRunner/TestController.cpp        2016-11-29 17:14:45 UTC (rev 209072)
+++ trunk/Tools/WebKitTestRunner/TestController.cpp        2016-11-29 17:16:08 UTC (rev 209073)
</span><span class="lines">@@ -647,6 +647,7 @@
</span><span class="cx">     WKPreferencesSetArtificialPluginInitializationDelayEnabled(preferences, false);
</span><span class="cx">     WKPreferencesSetTabToLinksEnabled(preferences, false);
</span><span class="cx">     WKPreferencesSetInteractiveFormValidationEnabled(preferences, true);
</span><ins>+
</ins><span class="cx">     WKPreferencesSetMockScrollbarsEnabled(preferences, options.useMockScrollbars);
</span><span class="cx">     WKPreferencesSetNeedsSiteSpecificQuirks(preferences, options.needsSiteSpecificQuirks);
</span><span class="cx">     WKPreferencesSetIntersectionObserverEnabled(preferences, options.enableIntersectionObserver);
</span></span></pre></div>
<a id="trunkToolsWebKitTestRunneriosPlatformWebViewIOSmm"></a>
<div class="modfile"><h4>Modified: trunk/Tools/WebKitTestRunner/ios/PlatformWebViewIOS.mm (209072 => 209073)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/WebKitTestRunner/ios/PlatformWebViewIOS.mm        2016-11-29 17:14:45 UTC (rev 209072)
+++ trunk/Tools/WebKitTestRunner/ios/PlatformWebViewIOS.mm        2016-11-29 17:16:08 UTC (rev 209073)
</span><span class="lines">@@ -278,7 +278,10 @@
</span><span class="cx"> 
</span><span class="cx"> bool PlatformWebView::viewSupportsOptions(const TestOptions&amp; options) const
</span><span class="cx"> {
</span><del>-    if (m_options.overrideLanguages != options.overrideLanguages || m_options.needsSiteSpecificQuirks != options.needsSiteSpecificQuirks || m_options.useCharacterSelectionGranularity != options.useCharacterSelectionGranularity)
</del><ins>+    if (m_options.overrideLanguages != options.overrideLanguages
+        || m_options.needsSiteSpecificQuirks != options.needsSiteSpecificQuirks
+        || m_options.useCharacterSelectionGranularity != options.useCharacterSelectionGranularity
+        || m_options.enableIntersectionObserver != options.enableIntersectionObserver)
</ins><span class="cx">         return false;
</span><span class="cx"> 
</span><span class="cx">     return true;
</span></span></pre></div>
<a id="trunkToolsWebKitTestRunnermacPlatformWebViewMacmm"></a>
<div class="modfile"><h4>Modified: trunk/Tools/WebKitTestRunner/mac/PlatformWebViewMac.mm (209072 => 209073)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/WebKitTestRunner/mac/PlatformWebViewMac.mm        2016-11-29 17:14:45 UTC (rev 209072)
+++ trunk/Tools/WebKitTestRunner/mac/PlatformWebViewMac.mm        2016-11-29 17:16:08 UTC (rev 209073)
</span><span class="lines">@@ -273,7 +273,11 @@
</span><span class="cx"> 
</span><span class="cx"> bool PlatformWebView::viewSupportsOptions(const TestOptions&amp; options) const
</span><span class="cx"> {
</span><del>-    if (m_options.useThreadedScrolling != options.useThreadedScrolling || m_options.overrideLanguages != options.overrideLanguages || m_options.useMockScrollbars != options.useMockScrollbars || m_options.needsSiteSpecificQuirks != options.needsSiteSpecificQuirks)
</del><ins>+    if (m_options.useThreadedScrolling != options.useThreadedScrolling
+        || m_options.overrideLanguages != options.overrideLanguages
+        || m_options.useMockScrollbars != options.useMockScrollbars
+        || m_options.needsSiteSpecificQuirks != options.needsSiteSpecificQuirks
+        || m_options.enableIntersectionObserver != options.enableIntersectionObserver)
</ins><span class="cx">         return false;
</span><span class="cx"> 
</span><span class="cx">     return true;
</span></span></pre>
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