Oilpan: move 2D Canvas and WebGL objects to the heap.

Source/core/html/canvas/WebGLContextGroup.h

Index: Source/core/html/canvas/WebGLContextGroup.h
diff --git a/Source/core/html/canvas/WebGLContextGroup.h b/Source/core/html/canvas/WebGLContextGroup.h
index 6c2f995354013332bda0e70ba332cefb2c2f7aec..73a3f6a740c3c40d82cfdf68480931d1ffd397c5 100644
--- a/Source/core/html/canvas/WebGLContextGroup.h
+++ b/Source/core/html/canvas/WebGLContextGroup.h
@@ -58,13 +58,19 @@ public:
 
     void loseContextGroup(WebGLRenderingContextBase::LostContextMode);
 
-  private:
+private:
     friend class WebGLObject;
 
     WebGLContextGroup();
 
     void detachAndRemoveAllObjects();
 
+    // Oilpan: this object is not on the heap, but keeps bare pointers

[haraken, 2014/07/03 04:40:29]

FIXME: Oilpan: ?

[sof, 2014/07/03 07:25:48]

Prefixed.

+    // to garbage collected objects in the two hash sets below. The
+    // objects are responsible for managing their registration with
+    // WebGLContextGroup, and vice versa, the WebGLContextGroup takes
+    // care of detaching the group objects if the set of
+    // WebGLRenderingContextBase contexts becomes empty.
     HashSet<WebGLRenderingContextBase*> m_contexts;
     HashSet<WebGLSharedObject*> m_groupObjects;
 };