Delete CC.

cc/output/compositor_frame_ack.h

Index: cc/output/compositor_frame_ack.h
diff --git a/cc/output/compositor_frame_ack.h b/cc/output/compositor_frame_ack.h
deleted file mode 100644
index 4fedc278a03a9a2fb89652628add229d60618234..0000000000000000000000000000000000000000
--- a/cc/output/compositor_frame_ack.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// 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_COMPOSITOR_FRAME_ACK_H_
-#define CC_OUTPUT_COMPOSITOR_FRAME_ACK_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "cc/output/gl_frame_data.h"
-#include "cc/resources/returned_resource.h"
-
-namespace cc {
-
-class CompositorFrameAck {
- public:
-  CompositorFrameAck();
-  ~CompositorFrameAck();
-
-  ReturnedResourceArray resources;
-  scoped_ptr<GLFrameData> gl_frame_data;
-  unsigned last_software_frame_id;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(CompositorFrameAck);
-};
-
-}  // namespace cc
-
-#endif  // CC_OUTPUT_COMPOSITOR_FRAME_ACK_H_