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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/173776">173776</a></dd>
<dt>Author</dt> <dd>dino@apple.com</dd>
<dt>Date</dt> <dd>2014-09-19 15:30:43 -0700 (Fri, 19 Sep 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>Multithreaded WebGL is a bad idea - remove it
https://bugs.webkit.org/show_bug.cgi?id=136964
&lt;rdar://problem/18399858&gt;

Reviewed by Brent Fulgham.

Source/WebCore:

We should not allow multithreaded GL access. Remove the
feature.

* html/canvas/WebGLRenderingContext.cpp:
(WebCore::WebGLRenderingContext::create):
* page/Settings.in:
* platform/graphics/GraphicsContext3D.h:
(WebCore::GraphicsContext3D::Attributes::Attributes):
* platform/graphics/mac/GraphicsContext3DMac.mm:
(WebCore::GraphicsContext3D::GraphicsContext3D):

Source/WebKit/mac:

Remove the setting to allow multithreaded WebGL.

* WebView/WebPreferenceKeysPrivate.h:
* WebView/WebPreferences.mm:
(+[WebPreferences initialize]):
(-[WebPreferences multithreadedWebGLEnabled]): Deleted.
(-[WebPreferences setMultithreadedWebGLEnabled:]): Deleted.
* WebView/WebPreferencesPrivate.h:
* WebView/WebView.mm:
(-[WebView _preferencesChanged:]):

Source/WebKit2:

Remove the setting to allow multithreaded WebGL.

* Shared/WebPreferencesDefinitions.h:
* UIProcess/API/C/WKPreferences.cpp:
(WKPreferencesSetMultithreadedWebGLEnabled): Deleted.
(WKPreferencesGetMultithreadedWebGLEnabled): Deleted.
* UIProcess/API/C/WKPreferencesRefPrivate.h:
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::updatePreferences):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorehtmlcanvasWebGLRenderingContextcpp">trunk/Source/WebCore/html/canvas/WebGLRenderingContext.cpp</a></li>
<li><a href="#trunkSourceWebCorepageSettingsin">trunk/Source/WebCore/page/Settings.in</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsGraphicsContext3Dh">trunk/Source/WebCore/platform/graphics/GraphicsContext3D.h</a></li>
<li><a href="#trunkSourceWebCoreplatformgraphicsmacGraphicsContext3DMacmm">trunk/Source/WebCore/platform/graphics/mac/GraphicsContext3DMac.mm</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 (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebCore/ChangeLog        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -1,3 +1,22 @@
</span><ins>+2014-09-19  Dean Jackson  &lt;dino@apple.com&gt;
+
+        Multithreaded WebGL is a bad idea - remove it
+        https://bugs.webkit.org/show_bug.cgi?id=136964
+        &lt;rdar://problem/18399858&gt;
+
+        Reviewed by Brent Fulgham.
+
+        We should not allow multithreaded GL access. Remove the
+        feature.
+
+        * html/canvas/WebGLRenderingContext.cpp:
+        (WebCore::WebGLRenderingContext::create):
+        * page/Settings.in:
+        * platform/graphics/GraphicsContext3D.h:
+        (WebCore::GraphicsContext3D::Attributes::Attributes):
+        * platform/graphics/mac/GraphicsContext3DMac.mm:
+        (WebCore::GraphicsContext3D::GraphicsContext3D):
+
</ins><span class="cx"> 2014-09-19  Eric Carlson  &lt;eric.carlson@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         [MSE][Mac] work around AVSampleBufferRenderSynchronizer early callbacks
</span></span></pre></div>
<a id="trunkSourceWebCorehtmlcanvasWebGLRenderingContextcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/html/canvas/WebGLRenderingContext.cpp (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/html/canvas/WebGLRenderingContext.cpp        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebCore/html/canvas/WebGLRenderingContext.cpp        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -431,9 +431,6 @@
</span><span class="cx">     attributes.shareResources = false;
</span><span class="cx">     attributes.preferDiscreteGPU = true;
</span><span class="cx"> 
</span><del>-    if (frame-&gt;settings().multithreadedWebGLEnabled())
-        attributes.multithreaded = true;
-
</del><span class="cx">     if (frame-&gt;settings().forceSoftwareWebGLRendering())
</span><span class="cx">         attributes.forceSoftwareRenderer = true;
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCorepageSettingsin"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/Settings.in (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/Settings.in        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebCore/page/Settings.in        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -100,7 +100,6 @@
</span><span class="cx"> webGLEnabled initial=false
</span><span class="cx"> webGLErrorsToConsoleEnabled initial=true
</span><span class="cx"> openGLMultisamplingEnabled initial=true
</span><del>-multithreadedWebGLEnabled initial=false
</del><span class="cx"> privilegedWebGLExtensionsEnabled initial=false
</span><span class="cx"> forceSoftwareWebGLRendering initial=false
</span><span class="cx"> accelerated2dCanvasEnabled initial=false
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsGraphicsContext3Dh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/GraphicsContext3D.h (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/GraphicsContext3D.h        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebCore/platform/graphics/GraphicsContext3D.h        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -441,7 +441,6 @@
</span><span class="cx">             , noExtensions(false)
</span><span class="cx">             , shareResources(true)
</span><span class="cx">             , preferDiscreteGPU(false)
</span><del>-            , multithreaded(false)
</del><span class="cx">             , forceSoftwareRenderer(false)
</span><span class="cx">         {
</span><span class="cx">         }
</span><span class="lines">@@ -455,7 +454,6 @@
</span><span class="cx">         bool noExtensions;
</span><span class="cx">         bool shareResources;
</span><span class="cx">         bool preferDiscreteGPU;
</span><del>-        bool multithreaded;
</del><span class="cx">         bool forceSoftwareRenderer;
</span><span class="cx">     };
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformgraphicsmacGraphicsContext3DMacmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/graphics/mac/GraphicsContext3DMac.mm (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/graphics/mac/GraphicsContext3DMac.mm        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebCore/platform/graphics/mac/GraphicsContext3DMac.mm        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -207,14 +207,6 @@
</span><span class="cx">     // Set the current context to the one given to us.
</span><span class="cx">     CGLSetCurrentContext(m_contextObj);
</span><span class="cx"> 
</span><del>-    if (attrs.multithreaded) {
-        err = CGLEnable(m_contextObj, kCGLCEMPEngine);
-        if (err != kCGLNoError) {
-            // We could not create a multi-threaded context.
-            m_contextObj = 0;
-            return;
-        }
-    }
</del><span class="cx"> #endif // !PLATFORM(IOS)
</span><span class="cx">     
</span><span class="cx">     validateAttributes();
</span></span></pre></div>
<a id="trunkSourceWebKitmacChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/ChangeLog (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/ChangeLog        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit/mac/ChangeLog        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -1,3 +1,22 @@
</span><ins>+2014-09-19  Dean Jackson  &lt;dino@apple.com&gt;
+
+        Multithreaded WebGL is a bad idea - remove it
+        https://bugs.webkit.org/show_bug.cgi?id=136964
+        &lt;rdar://problem/18399858&gt;
+
+        Reviewed by Brent Fulgham.
+
+        Remove the setting to allow multithreaded WebGL.
+
+        * WebView/WebPreferenceKeysPrivate.h:
+        * WebView/WebPreferences.mm:
+        (+[WebPreferences initialize]):
+        (-[WebPreferences multithreadedWebGLEnabled]): Deleted.
+        (-[WebPreferences setMultithreadedWebGLEnabled:]): Deleted.
+        * WebView/WebPreferencesPrivate.h:
+        * WebView/WebView.mm:
+        (-[WebView _preferencesChanged:]):
+
</ins><span class="cx"> 2014-09-19  Daniel Bates  &lt;dabates@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Always assume internal SDK when building configuration Production
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebPreferenceKeysPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebPreferenceKeysPrivate.h (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebPreferenceKeysPrivate.h        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit/mac/WebView/WebPreferenceKeysPrivate.h        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -106,7 +106,6 @@
</span><span class="cx"> #define WebKitShowRepaintCounterPreferenceKey @&quot;WebKitShowRepaintCounter&quot;
</span><span class="cx"> #define WebKitWebAudioEnabledPreferenceKey @&quot;WebKitWebAudioEnabled&quot;
</span><span class="cx"> #define WebKitWebGLEnabledPreferenceKey @&quot;WebKitWebGLEnabled&quot;
</span><del>-#define WebKitMultithreadedWebGLEnabledPreferenceKey @&quot;WebKitMultithreadedWebGLEnabled&quot;
</del><span class="cx"> #define WebKitForceSoftwareWebGLRenderingPreferenceKey @&quot;WebKitForceSoftwareWebGLRendering&quot;
</span><span class="cx"> #define WebKitAccelerated2dCanvasEnabledPreferenceKey @&quot;WebKitAccelerated2dCanvasEnabled&quot;
</span><span class="cx"> #define WebKitFrameFlatteningEnabledPreferenceKey @&quot;WebKitFrameFlatteningEnabled&quot;
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebPreferencesmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebPreferences.mm (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebPreferences.mm        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit/mac/WebView/WebPreferences.mm        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -494,7 +494,6 @@
</span><span class="cx">         [NSNumber numberWithBool:NO],   WebKitShowDebugBordersPreferenceKey,
</span><span class="cx">         [NSNumber numberWithBool:NO],   WebKitShowRepaintCounterPreferenceKey,
</span><span class="cx">         [NSNumber numberWithBool:YES],  WebKitWebGLEnabledPreferenceKey,
</span><del>-        [NSNumber numberWithBool:NO],   WebKitMultithreadedWebGLEnabledPreferenceKey,
</del><span class="cx">         [NSNumber numberWithBool:NO],  WebKitForceSoftwareWebGLRenderingPreferenceKey,
</span><span class="cx">         [NSNumber numberWithBool:NO],   WebKitAccelerated2dCanvasEnabledPreferenceKey,
</span><span class="cx">         [NSNumber numberWithBool:NO],  WebKitSubpixelCSSOMElementMetricsEnabledPreferenceKey,
</span><span class="lines">@@ -1874,16 +1873,6 @@
</span><span class="cx">     [self _setBoolValue:enabled forKey:WebKitWebGLEnabledPreferenceKey];
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (BOOL)multithreadedWebGLEnabled
-{
-    return [self _boolValueForKey:WebKitMultithreadedWebGLEnabledPreferenceKey];
-}
-
-- (void)setMultithreadedWebGLEnabled:(BOOL)enabled
-{
-    [self _setBoolValue:enabled forKey:WebKitMultithreadedWebGLEnabledPreferenceKey];
-}
-
</del><span class="cx"> - (BOOL)forceSoftwareWebGLRendering
</span><span class="cx"> {
</span><span class="cx">     return [self _boolValueForKey:WebKitForceSoftwareWebGLRenderingPreferenceKey];
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebPreferencesPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebPreferencesPrivate.h (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebPreferencesPrivate.h        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit/mac/WebView/WebPreferencesPrivate.h        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -220,9 +220,6 @@
</span><span class="cx"> - (BOOL)webGLEnabled;
</span><span class="cx"> - (void)setWebGLEnabled:(BOOL)enabled;
</span><span class="cx"> 
</span><del>-- (BOOL)multithreadedWebGLEnabled;
-- (void)setMultithreadedWebGLEnabled:(BOOL)enabled;
-
</del><span class="cx"> - (BOOL)forceSoftwareWebGLRendering;
</span><span class="cx"> - (void)setForceSoftwareWebGLRendering:(BOOL)forced;
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKitmacWebViewWebViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit/mac/WebView/WebView.mm (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit/mac/WebView/WebView.mm        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit/mac/WebView/WebView.mm        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -2333,9 +2333,6 @@
</span><span class="cx">     settings.setShowsURLsInToolTips([preferences showsURLsInToolTips]);
</span><span class="cx">     settings.setShowsToolTipOverTruncatedText([preferences showsToolTipOverTruncatedText]);
</span><span class="cx">     settings.setQTKitEnabled([preferences isQTKitEnabled]);
</span><del>-
-    // FIXME: Should we enable this following &lt;rdar://problem/15290404&gt;?
-    settings.setMultithreadedWebGLEnabled([preferences multithreadedWebGLEnabled]);
</del><span class="cx"> #endif // PLATFORM(MAC)
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(SQL_DATABASE)
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit2/ChangeLog        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -1,3 +1,21 @@
</span><ins>+2014-09-19  Dean Jackson  &lt;dino@apple.com&gt;
+
+        Multithreaded WebGL is a bad idea - remove it
+        https://bugs.webkit.org/show_bug.cgi?id=136964
+        &lt;rdar://problem/18399858&gt;
+
+        Reviewed by Brent Fulgham.
+
+        Remove the setting to allow multithreaded WebGL.
+
+        * Shared/WebPreferencesDefinitions.h:
+        * UIProcess/API/C/WKPreferences.cpp:
+        (WKPreferencesSetMultithreadedWebGLEnabled): Deleted.
+        (WKPreferencesGetMultithreadedWebGLEnabled): Deleted.
+        * UIProcess/API/C/WKPreferencesRefPrivate.h:
+        * WebProcess/WebPage/WebPage.cpp:
+        (WebKit::WebPage::updatePreferences):
+
</ins><span class="cx"> 2014-09-19  Simon Fraser  &lt;simon.fraser@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Provide a default argument for the most commonly used HitTestRequest variant
</span></span></pre></div>
<a id="trunkSourceWebKit2SharedWebPreferencesDefinitionsh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit2/Shared/WebPreferencesDefinitions.h        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -113,7 +113,6 @@
</span><span class="cx">     macro(AcceleratedDrawingEnabled, acceleratedDrawingEnabled, Bool, bool, DEFAULT_ACCELERATED_DRAWING_ENABLED) \
</span><span class="cx">     macro(CanvasUsesAcceleratedDrawing, canvasUsesAcceleratedDrawing, Bool, bool, DEFAULT_CANVAS_USES_ACCELERATED_DRAWING) \
</span><span class="cx">     macro(WebGLEnabled, webGLEnabled, Bool, bool, true) \
</span><del>-    macro(MultithreadedWebGLEnabled, multithreadedWebGLEnabled, Bool, bool, false) \
</del><span class="cx">     macro(ForceSoftwareWebGLRendering, forceSoftwareWebGLRendering, Bool, bool, false) \
</span><span class="cx">     macro(Accelerated2dCanvasEnabled, accelerated2dCanvasEnabled, Bool, bool, false) \
</span><span class="cx">     macro(CSSRegionsEnabled, cssRegionsEnabled, Bool, bool, true) \
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKPreferencescpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKPreferences.cpp        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -469,16 +469,6 @@
</span><span class="cx">     return toImpl(preferencesRef)-&gt;webGLEnabled();
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void WKPreferencesSetMultithreadedWebGLEnabled(WKPreferencesRef preferencesRef, bool flag)
-{
-    toImpl(preferencesRef)-&gt;setMultithreadedWebGLEnabled(flag);
-}
-
-bool WKPreferencesGetMultithreadedWebGLEnabled(WKPreferencesRef preferencesRef)
-{
-    return toImpl(preferencesRef)-&gt;multithreadedWebGLEnabled();
-}
-
</del><span class="cx"> void WKPreferencesSetForceSoftwareWebGLRendering(WKPreferencesRef preferencesRef, bool flag)
</span><span class="cx"> {
</span><span class="cx">     toImpl(preferencesRef)-&gt;setForceSoftwareWebGLRendering(flag);
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKPreferencesRefPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKPreferencesRefPrivate.h        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -93,10 +93,6 @@
</span><span class="cx"> WK_EXPORT bool WKPreferencesGetWebGLEnabled(WKPreferencesRef);
</span><span class="cx"> 
</span><span class="cx"> // Defaults to false.
</span><del>-WK_EXPORT void WKPreferencesSetMultithreadedWebGLEnabled(WKPreferencesRef, bool);
-WK_EXPORT bool WKPreferencesGetMultithreadedWebGLEnabled(WKPreferencesRef);
-
-// Defaults to false.
</del><span class="cx"> WK_EXPORT void WKPreferencesSetForceSoftwareWebGLRendering(WKPreferencesRef, bool);
</span><span class="cx"> WK_EXPORT bool WKPreferencesGetForceSoftwareWebGLRendering(WKPreferencesRef);
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2WebProcessWebPageWebPagecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp (173775 => 173776)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp        2014-09-19 22:20:47 UTC (rev 173775)
+++ trunk/Source/WebKit2/WebProcess/WebPage/WebPage.cpp        2014-09-19 22:30:43 UTC (rev 173776)
</span><span class="lines">@@ -2702,7 +2702,6 @@
</span><span class="cx">     RuntimeEnabledFeatures::sharedFeatures().setCSSRegionsEnabled(store.getBoolValueForKey(WebPreferencesKey::cssRegionsEnabledKey()));
</span><span class="cx">     RuntimeEnabledFeatures::sharedFeatures().setCSSCompositingEnabled(store.getBoolValueForKey(WebPreferencesKey::cssCompositingEnabledKey()));
</span><span class="cx">     settings.setWebGLEnabled(store.getBoolValueForKey(WebPreferencesKey::webGLEnabledKey()));
</span><del>-    settings.setMultithreadedWebGLEnabled(store.getBoolValueForKey(WebPreferencesKey::multithreadedWebGLEnabledKey()));
</del><span class="cx">     settings.setForceSoftwareWebGLRendering(store.getBoolValueForKey(WebPreferencesKey::forceSoftwareWebGLRenderingKey()));
</span><span class="cx">     settings.setAccelerated2dCanvasEnabled(store.getBoolValueForKey(WebPreferencesKey::accelerated2dCanvasEnabledKey()));
</span><span class="cx">     settings.setMediaPlaybackRequiresUserGesture(store.getBoolValueForKey(WebPreferencesKey::mediaPlaybackRequiresUserGestureKey()));
</span></span></pre>
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