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

Source/core/html/canvas/OESStandardDerivatives.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 27 matching lines @@
 
 OESStandardDerivatives::~OESStandardDerivatives()
 {
 }
 
 WebGLExtensionName OESStandardDerivatives::name() const
 {
     return OESStandardDerivativesName;
 }
 
-PassRefPtr<OESStandardDerivatives> OESStandardDerivatives::create(WebGLRenderingContextBase* context)
+PassRefPtrWillBeRawPtr<OESStandardDerivatives> OESStandardDerivatives::create(WebGLRenderingContextBase* context)
 {
-    return adoptRef(new OESStandardDerivatives(context));
+    return adoptRefWillBeNoop(new OESStandardDerivatives(context));
 }
 
 bool OESStandardDerivatives::supported(WebGLRenderingContextBase* context)
 {
     return context->extensionsUtil()->supportsExtension("GL_OES_standard_derivatives");
 }
 
 const char* OESStandardDerivatives::extensionName()
 {
     return "OES_standard_derivatives";
 }
 
 } // namespace blink