Refactor AcceleratedStaticBitmapImage

third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.h

 /*
  * Copyright (c) 2010, 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 26 matching lines @@
 #include "platform/PlatformExport.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/GraphicsTypes3D.h"
 #include "platform/graphics/gpu/WebGLImageConversion.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "wtf/Deque.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
+#include "wtf/WeakPtr.h"
 #include <memory>
 
 namespace cc {
 class SharedBitmap;
 }
 
 namespace gpu {
 namespace gles2 {
 class GLES2Interface;
 }
@@ skipping 449 matching lines @@
   // used to resize the Canvas.
   SkBitmap m_resizingBitmap;
 
   // In the case of OffscreenCanvas, we do not want to enable the
   // WebGLImageChromium flag, so we replace all the
   // RuntimeEnabledFeatures::webGLImageChromiumEnabled() call with
   // shouldUseChromiumImage() calls, and set m_chromiumImageUsage to
   // DisallowChromiumImage in the case of OffscreenCanvas.
   ChromiumImageUsage m_chromiumImageUsage;
   bool shouldUseChromiumImage();
+
+  WeakPtrFactory<DrawingBuffer> m_weakPtrFactory;
 };
 
 }  // namespace blink
 
 #endif  // DrawingBuffer_h