Refactoring ImageBuffer to decouple it from Canvas2DLayerBridge

Source/core/platform/graphics/gpu/AcceleratedImageBufferSurface.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:
  *
  *     * 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 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef MockImageResourceClient_h
-#define MockImageResourceClient_h
+#include "config.h"
 
-#include "core/fetch/ImageResourceClient.h"
+#include "core/platform/graphics/gpu/AcceleratedImageBufferSurface.h"
 
-#include <gtest/gtest.h>
+#include "core/platform/graphics/gpu/SharedGraphicsContext3D.h"
+#include "third_party/skia/include/gpu/SkGpuDevice.h"
 
 namespace WebCore {
 
-class MockImageResourceClient : public WebCore::ImageResourceClient {
-public:
-    MockImageResourceClient()
-        : m_imageChangedCount(0)
-        , m_notifyFinishedCalled(false)
-    {
+AcceleratedImageBufferSurface::AcceleratedImageBufferSurface(const IntSize& size, OpacityMode opacityMode, float resolutionScale, int msaaSampleCount)
+    : ImageBufferSurface(size, opacityMode, resolutionScale)
+{
+    GrContext* grContext = SharedGraphicsContext3D::get()->grContext();
+    if (!grContext)
+        return;
+    RefPtr<SkGpuDevice> device = adoptRef(new SkGpuDevice(grContext, SkBitmap::kARGB_8888_Config, size.width(), size.height(), msaaSampleCount));
+    if (!device->accessRenderTarget())
+        return;
+    m_canvas = adoptPtr(new SkCanvas(device.get()));
+    clear();
+}
+
+Platform3DObject AcceleratedImageBufferSurface::getBackingTexture() const
+{
+    GrRenderTarget* renderTarget = m_canvas->getTopDevice()->accessRenderTarget();
+    if (renderTarget) {
+        return renderTarget->asTexture()->getTextureHandle();
     }
-
-    virtual ~MockImageResourceClient() { }
-    virtual void imageChanged(ImageResource*, const IntRect*)
-    {
-        m_imageChangedCount++;
-    }
-
-    virtual void notifyFinished(Resource*)
-    {
-        ASSERT_FALSE(m_notifyFinishedCalled);
-        m_notifyFinishedCalled = true;
-    }
-
-    int imageChangedCount() const { return m_imageChangedCount; }
-    bool notifyFinishedCalled() const { return m_notifyFinishedCalled; }
-
-private:
-    int m_imageChangedCount;
-    bool m_notifyFinishedCalled;
-};
+    return 0;
+}
 
 } // namespace WebCore
-
-#endif // ImageResourceTest_h