Remove the acceleratedCompositingForCanvas setting.

Source/web/WebSettingsImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 446 matching lines @@
 void WebSettingsImpl::setCompositorDrivenAcceleratedScrollingEnabled(bool enabled)
 {
     m_settings->setCompositorDrivenAcceleratedScrollingEnabled(enabled);
 }
 
 void WebSettingsImpl::setAcceleratedCompositingForFixedRootBackgroundEnabled(bool enabled)
 {
     m_settings->setAcceleratedCompositingForFixedRootBackgroundEnabled(enabled);
 }
 
-void WebSettingsImpl::setAcceleratedCompositingForCanvasEnabled(bool enabled)
-{
-    m_settings->setAcceleratedCompositingForCanvasEnabled(enabled);
-}
-
 void WebSettingsImpl::setAccelerated2dCanvasEnabled(bool enabled)
 {
     m_settings->setAccelerated2dCanvasEnabled(enabled);
 }
 
 void WebSettingsImpl::setAccelerated2dCanvasMSAASampleCount(int count)
 {
     m_settings->setAccelerated2dCanvasMSAASampleCount(count);
 }
 
@@ skipping 217 matching lines @@
 {
     m_settings->setDisallowFullscreenForNonMediaElements(enabled);
 }
 
 void WebSettingsImpl::setV8CacheOptions(V8CacheOptions options)
 {
     m_settings->setV8CacheOptions(static_cast<blink::V8CacheOptions>(options));
 }
 
 } // namespace blink