Change default force composite setting to true

Source/core/inspector/InspectorOverlay.cpp

 /*
  * Copyright (C) 2011 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:
  *
  * 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
@@ skipping 689 matching lines @@
     overlaySettings.genericFontFamilySettings().setSerif(settings.genericFontFamilySettings().serif());
     overlaySettings.genericFontFamilySettings().setSansSerif(settings.genericFontFamilySettings().sansSerif());
     overlaySettings.genericFontFamilySettings().setCursive(settings.genericFontFamilySettings().cursive());
     overlaySettings.genericFontFamilySettings().setFantasy(settings.genericFontFamilySettings().fantasy());
     overlaySettings.genericFontFamilySettings().setPictograph(settings.genericFontFamilySettings().pictograph());
     overlaySettings.setMinimumFontSize(settings.minimumFontSize());
     overlaySettings.setMinimumLogicalFontSize(settings.minimumLogicalFontSize());
     overlaySettings.setScriptEnabled(true);
     overlaySettings.setPluginsEnabled(false);
     overlaySettings.setLoadsImagesAutomatically(true);
+    // FIXME: http://crbug.com/363843. Inspector should probably create its
+    // own graphics layers and attach them to the tree rather than going
+    // through some non-composited paint function.
+    overlaySettings.setAcceleratedCompositingEnabled(false);
 
     RefPtr<LocalFrame> frame = LocalFrame::create(dummyFrameLoaderClient, &m_overlayPage->frameHost(), 0);
     frame->setView(FrameView::create(frame.get()));
     frame->init();
     FrameLoader& loader = frame->loader();
     frame->view()->setCanHaveScrollbars(false);
     frame->view()->setTransparent(true);
 
     RefPtr<SharedBuffer> data = SharedBuffer::create(reinterpret_cast<const char*>(InspectorOverlayPage_html), sizeof(InspectorOverlayPage_html));
     loader.load(FrameLoadRequest(0, blankURL(), SubstituteData(data, "text/html", "UTF-8", KURL(), ForceSynchronousLoad)));
@@ skipping 73 matching lines @@
     hideHighlight();
 }
 
 void InspectorOverlay::startedRecordingProfile()
 {
     if (!m_activeProfilerCount++)
         freePage();
 }
 
 } // namespace WebCore