Revert 251207 "Use gpu::Mailbox instead of std:string in IPCs"

trunk/src/content/common/gpu/texture_image_transport_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_COMMON_GPU_TEXTURE_IMAGE_TRANSPORT_SURFACE_H_
 #define CONTENT_COMMON_GPU_TEXTURE_IMAGE_TRANSPORT_SURFACE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 56 matching lines @@
     GLsizei height = 0;
     backbuffer_->texture()->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height);
     return gfx::Size(width, height);
   }
 
   virtual ~TextureImageTransportSurface();
   void CreateBackTexture();
   void AttachBackTextureToFBO();
   void ReleaseBackTexture();
   void ReleaseFrontTexture();
-  void BufferPresentedImpl(const gpu::Mailbox& mailbox_name);
+  void BufferPresentedImpl(const std::string& mailbox_name);
 
   // The framebuffer that represents this surface (service id). Allocated lazily
   // in OnMakeCurrent.
   uint32 fbo_id_;
 
   // The current backbuffer.
   scoped_refptr<gpu::gles2::TextureRef> backbuffer_;
   scoped_refptr<gpu::gles2::TextureRef> frontbuffer_;
 
   // The mailbox name for the current backbuffer texture. Needs to be unique per
@@ skipping 28 matching lines @@
   // Holds a reference to the mailbox manager for cleanup.
   scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_;
 
   std::vector<ui::LatencyInfo> latency_info_;
   DISALLOW_COPY_AND_ASSIGN(TextureImageTransportSurface);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_TEXTURE_IMAGE_TRANSPORT_SURFACE_H_