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

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

Index: Source/WebCore/platform/graphics/chromium/GraphicsLayerChromium.cpp
===================================================================
--- Source/WebCore/platform/graphics/chromium/GraphicsLayerChromium.cpp	(revision 93831)
+++ Source/WebCore/platform/graphics/chromium/GraphicsLayerChromium.cpp	(working copy)
@@ -102,12 +102,21 @@
 
 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)