Merge 99485 - Source/WebCore: Create a separate setting for compositing of for scrollable [i]frames

Source/WebCore/page/Settings.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2011 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 162 matching lines @@
     // FIXME: This should really be disabled by default as it makes platforms that don't support the feature download files
     // they can't use by. Leaving enabled for now to not change existing behavior.
     , m_downloadableBinaryFontsEnabled(true)
     , m_xssAuditorEnabled(false)
     , m_acceleratedCompositingEnabled(true)
     , m_acceleratedCompositingFor3DTransformsEnabled(true)
     , m_acceleratedCompositingForVideoEnabled(true)
     , m_acceleratedCompositingForPluginsEnabled(true)
     , m_acceleratedCompositingForCanvasEnabled(true)
     , m_acceleratedCompositingForAnimationEnabled(true)
+    , m_acceleratedCompositingForScrollableFramesEnabled(false)
     , m_showDebugBorders(false)
     , m_showRepaintCounter(false)
     , m_experimentalNotificationsEnabled(false)
     , m_webGLEnabled(false)
     , m_openGLMultisamplingEnabled(true)
     , m_webAudioEnabled(false)
     , m_acceleratedCanvas2dEnabled(false)
     , m_legacyAcceleratedCanvas2dEnabled(false)
     , m_loadDeferringEnabled(true)
     , m_tiledBackingStoreEnabled(false)
@@ skipping 622 matching lines @@
 {
     gMockScrollbarsEnabled = flag;
 }
 
 bool Settings::mockScrollbarsEnabled()
 {
     return gMockScrollbarsEnabled;
 }
 
 } // namespace WebCore