Compositor leaks all resources if tab is closed and it's not the last in the process

Source/WebCore/platform/graphics/chromium/GraphicsLayerChromium.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 84 matching lines @@
     , m_contentsLayerHasBackgroundColor(false)
     , m_inSetChildren(false)
 {
     m_layer = ContentLayerChromium::create(this);
 
     updateDebugIndicators();
 }
 
 GraphicsLayerChromium::~GraphicsLayerChromium()
 {
-    if (m_layer)
+    if (m_layer) {
         m_layer->setOwner(0);
-    if (m_contentsLayer)
+        if (m_layer->ccLayerImpl())
+            m_layer->ccLayerImpl()->clearRenderSurface();
+    }
+    if (m_contentsLayer) {
         m_contentsLayer->setOwner(0);
-    if (m_transformLayer)
+        if (m_contentsLayer->ccLayerImpl())
+            m_contentsLayer->ccLayerImpl()->clearRenderSurface();
+    }
+    if (m_transformLayer) {
         m_transformLayer->setOwner(0);
+        if (m_transformLayer->ccLayerImpl())
+            m_transformLayer->ccLayerImpl()->clearRenderSurface();
+    }
 }
 
 void GraphicsLayerChromium::setName(const String& inName)
 {
     m_nameBase = inName;
     String name = String::format("GraphicsLayerChromium(%p) GraphicsLayer(%p) ", m_layer.get(), this) + inName;
     GraphicsLayer::setName(name);
     updateNames();
 }
 
@@ skipping 556 matching lines @@
 
 // This function simply mimics the operation of GraphicsLayerCA
 void GraphicsLayerChromium::updateOpacityOnLayer()
 {
     primaryLayer()->setOpacity(m_opacity);
 }
 
 } // namespace WebCore
 
 #endif // USE(ACCELERATED_COMPOSITING)