Start an empty interface OffScreenCanvas

third_party/WebKit/Source/core/html/canvas/ImageBitmapRenderingContext.h

Index: third_party/WebKit/Source/core/html/canvas/ImageBitmapRenderingContext.h
diff --git a/third_party/WebKit/Source/core/html/canvas/ImageBitmapRenderingContext.h b/third_party/WebKit/Source/core/html/canvas/ImageBitmapRenderingContext.h
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index 0000000000000000000000000000000000000000..61f175988ab949efdf19ac540d166da634ef42a2
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+++ b/third_party/WebKit/Source/core/html/canvas/ImageBitmapRenderingContext.h
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ImageBitmapRenderingContext_h
+#define ImageBitmapRenderingContext_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "core/CoreExport.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class ImageBitmap;
+
+class CORE_EXPORT ImageBitmapRenderingContext final : public GarbageCollectedFinalized<ImageBitmapRenderingContext>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    void transferImageBitmap(PassRefPtrWillBeRawPtr<ImageBitmap>);
+
+    DECLARE_VIRTUAL_TRACE();
+};
+
+} // namespace blink
+
+#endif // ImageBitmapRenderingContext_h