Refactoring ImageBuffer to decouple it from Canvas2DLayerBridge

Source/platform/graphics/gpu/WebGLImageBufferSurface.cpp

Index: Source/platform/graphics/gpu/WebGLImageBufferSurface.cpp
diff --git a/Source/core/rendering/LayoutRectRecorder.h b/Source/platform/graphics/gpu/WebGLImageBufferSurface.cpp
similarity index 69%
copy from Source/core/rendering/LayoutRectRecorder.h
copy to Source/platform/graphics/gpu/WebGLImageBufferSurface.cpp
index c92eb5efc90d50bfbac57653cda3a1c84df4b4b2..a9869c98d2e519c54eebfe52fa8bdba12741a23d 100644
--- a/Source/core/rendering/LayoutRectRecorder.h
+++ b/Source/platform/graphics/gpu/WebGLImageBufferSurface.cpp
@@ -28,31 +28,30 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef LayoutRectRecorder_h
-#define LayoutRectRecorder_h
+#include "config.h"
 
-#include "platform/geometry/LayoutRect.h"
-#include "wtf/Noncopyable.h"
+#include "platform/graphics/gpu/WebGLImageBufferSurface.h"
 
-namespace WebCore {
-
-class RenderLayerModelObject;
-class RenderObject;
-
-class LayoutRectRecorder {
-    WTF_MAKE_NONCOPYABLE(LayoutRectRecorder);
-public:
-    LayoutRectRecorder(RenderObject&, bool skipRecording = false);
-    ~LayoutRectRecorder();
+#include "platform/graphics/gpu/SharedGraphicsContext3D.h"
+#include "platform/graphics/skia/GaneshUtils.h"
 
-    static bool shouldRecordLayoutRects();
+namespace WebCore {
 
-private:
-    RenderObject& m_object;
-    bool m_skipRecording;
-};
+WebGLImageBufferSurface::WebGLImageBufferSurface(const IntSize& size, OpacityMode opacityMode)
+    : ImageBufferSurface(size, opacityMode)
+{
+    GrContext* gr = SharedGraphicsContext3D::get()->grContext();
+    if (!gr)
+        return;
+    ensureTextureBackedSkBitmap(gr, m_bitmap, size, kDefault_GrSurfaceOrigin, kRGBA_8888_GrPixelConfig);
+}
+
+Platform3DObject WebGLImageBufferSurface::getBackingTexture() const
+{
+    GrTexture* texture = m_bitmap.getTexture();
+    if (!texture)
+        return 0;
+    return texture->getTextureHandle();
+}
 
 } // namespace WebCore
-
-#endif // LayoutRectRecorder_h
-