cc: Move WebCompositorOutputSurface and related classes into cc/

cc/output_surface_client.h

Index: cc/output_surface_client.h
diff --git a/cc/output_surface_client.h b/cc/output_surface_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..2c073b4f750d5815610cb8aeb857f8a898866e30
--- /dev/null
+++ b/cc/output_surface_client.h
@@ -0,0 +1,27 @@
+// 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"
+#include "cc/cc_export.h"
+
+namespace cc {
+
+class CompositorFrameAck;
+
+class CC_EXPORT 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_