Move Mailbox from cc to gpu, and its traits to gpu/ipc

content/renderer/gpu/mailbox_output_surface.h

 // Copyright (c) 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 CONTENT_RENDERER_GPU_MAILBOX_OUTPUT_SURFACE_H_
 #define CONTENT_RENDERER_GPU_MAILBOX_OUTPUT_SURFACE_H_
 
 #include <queue>
 
 #include "cc/transferable_resource.h"
@@ skipping 29 matching lines @@
  private:
   // CompositorOutputSurface overrides.
   virtual void OnSwapAck(const cc::CompositorFrameAck& ack) OVERRIDE;
 
   struct TransferableFrame
   {
     TransferableFrame()
         : texture_id(0) {}
 
     TransferableFrame(uint32 texture_id,
-                      const cc::Mailbox& mailbox,
+                      const gpu::Mailbox& mailbox,
                       const gfx::Size& size)
         : texture_id(texture_id),
           mailbox(mailbox),
           size(size) {}
 
     uint32 texture_id;
-    cc::Mailbox mailbox;
+    gpu::Mailbox mailbox;
     gfx::Size size;
   };
   TransferableFrame current_backing_;
   std::queue<TransferableFrame> returned_textures_;
 
   gfx::Size size_;
   uint32 fbo_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_MAILBOX_OUTPUT_SURFACE_H_