cc: Move WebCompositorOutputSurface and related classes into cc/

cc/output_surface_client.h

+// Copyright 2012 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 CC_OUTPUT_SURFACE_CLIENT_H_
+#define CC_OUTPUT_SURFACE_CLIENT_H_
+
+#include "base/time.h"
+
+namespace cc {
+
+class CompositorFrameAck;
+
+class OutputSurfaceClient {
+ public:
+  virtual void OnVSyncParametersChanged(base::TimeTicks timebase,
+                                        base::TimeDelta interval) = 0;
+  virtual void OnSendFrameToParentCompositorAck(const CompositorFrameAck&) = 0;
+
+ protected:
+  virtual ~OutputSurfaceClient() {}
+};
+
+}  // namespace cc
+
+#endif  // CC_OUTPUT_SURFACE_CLIENT_H_