Reland Submit Compositor Frame from OffscreenCanvas on main

third_party/WebKit/Source/platform/graphics/OffscreenCanvasFrameDispatcher.h

Index: third_party/WebKit/Source/platform/graphics/OffscreenCanvasFrameDispatcher.h
diff --git a/third_party/WebKit/Source/platform/graphics/OffscreenCanvasFrameDispatcher.h b/third_party/WebKit/Source/platform/graphics/OffscreenCanvasFrameDispatcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..ce7d2088f602ee412d60133d543d504b2efc1cef
--- /dev/null
+++ b/third_party/WebKit/Source/platform/graphics/OffscreenCanvasFrameDispatcher.h
@@ -0,0 +1,22 @@
+// Copyright 2016 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 OffscreenCanvasFrameDispatcher_h
+#define OffscreenCanvasFrameDispatcher_h
+
+#include "platform/PlatformExport.h"
+
+namespace blink {
+
+class WebLayer;
+
+class PLATFORM_EXPORT OffscreenCanvasFrameDispatcher {
+public:
+    virtual ~OffscreenCanvasFrameDispatcher() {};
+    virtual void dispatchFrame() = 0;
+};
+
+} // namespace blink
+
+#endif // OffscreenCanvasFrameDispatcher_h