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

Source/core/html/canvas/WebGLCompressedTexturePVRTC.cpp

 /*
  * Copyright (C) 2013 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 32 matching lines @@
 
 WebGLCompressedTexturePVRTC::~WebGLCompressedTexturePVRTC()
 {
 }
 
 WebGLExtensionName WebGLCompressedTexturePVRTC::name() const
 {
     return WebGLCompressedTexturePVRTCName;
 }
 
-PassRefPtr<WebGLCompressedTexturePVRTC> WebGLCompressedTexturePVRTC::create(WebGLRenderingContextBase* context)
+PassRefPtrWillBeRawPtr<WebGLCompressedTexturePVRTC> WebGLCompressedTexturePVRTC::create(WebGLRenderingContextBase* context)
 {
-    return adoptRef(new WebGLCompressedTexturePVRTC(context));
+    return adoptRefWillBeNoop(new WebGLCompressedTexturePVRTC(context));
 }
 
 bool WebGLCompressedTexturePVRTC::supported(WebGLRenderingContextBase* context)
 {
     return context->extensionsUtil()->supportsExtension("GL_IMG_texture_compression_pvrtc");
 }
 
 const char* WebGLCompressedTexturePVRTC::extensionName()
 {
     return "WEBGL_compressed_texture_pvrtc";
 }
 
 } // namespace blink