Use newImageSnapshot() to get an image from a Canvas

Source/platform/graphics/Canvas2DLayerBridge.h

 /*
  * Copyright (C) 2012 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
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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 #ifndef Canvas2DLayerBridge_h
 #define Canvas2DLayerBridge_h
 
-#include "SkDeferredCanvas.h"
-#include "SkImage.h"
 #include "platform/PlatformExport.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/ImageBufferSurface.h"
 #include "public/platform/WebExternalTextureLayer.h"
 #include "public/platform/WebExternalTextureLayerClient.h"
 #include "public/platform/WebExternalTextureMailbox.h"
 #include "third_party/khronos/GLES2/gl2.h"
+#include "third_party/skia/include/core/SkImage.h"
+#include "third_party/skia/include/utils/SkDeferredCanvas.h"
 #include "wtf/DoublyLinkedList.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 class WebGraphicsContext3D;
 class WebGraphicsContext3DProvider;
 }
 
@@ skipping 39 matching lines @@
     size_t bytesAllocated() const { return m_bytesAllocated; }
     void limitPendingFrames();
     void freeReleasedMailbox();
     bool hasReleasedMailbox() const;
     void freeTransientResources();
     bool hasTransientResources() const;
     bool isHidden() { return m_isHidden; }
 
     void beginDestruction();
 
+    PassRefPtr<SkImage> newImageSnapshot();
+
 protected:
     Canvas2DLayerBridge(PassOwnPtr<blink::WebGraphicsContext3DProvider>, PassOwnPtr<SkDeferredCanvas>, PassRefPtr<SkSurface>, int, OpacityMode);
     void setRateLimitingEnabled(bool);
     bool releasedMailboxHasExpired();
     blink::WebGraphicsContext3D* context();
 
     OwnPtr<SkDeferredCanvas> m_canvas;
     RefPtr<SkSurface> m_surface;
     OwnPtr<blink::WebExternalTextureLayer> m_layer;
     OwnPtr<blink::WebGraphicsContext3DProvider> m_contextProvider;
@@ skipping 30 matching lines @@
     };
     MailboxInfo* createMailboxInfo();
     MailboxInfo* releasedMailboxInfo();
 
     uint32_t m_lastImageId;
     Vector<MailboxInfo> m_mailboxes;
     int m_releasedMailboxInfoIndex;
 };
 }
 #endif