Align base::hash_map with C++11.

gpu/command_buffer/service/async_pixel_transfer_manager.h

 // Copyright 2013 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 GPU_COMMAND_BUFFER_SERVICE_ASYNC_PIXEL_TRANSFER_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_ASYNC_PIXEL_TRANSFER_MANAGER_H_
 
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "gpu/gpu_export.h"
 
-#if defined(COMPILER_GCC)
-namespace BASE_HASH_NAMESPACE {
-template <>
-  struct hash<gpu::gles2::TextureRef*> {
-  size_t operator()(gpu::gles2::TextureRef* ptr) const {
-    return hash<size_t>()(reinterpret_cast<size_t>(ptr));
-  }
-};
-}  // namespace BASE_HASH_NAMESPACE
-#endif  // COMPILER
-
 namespace gfx {
 class GLContext;
 }
 
 namespace gpu {
 class AsyncPixelTransferDelegate;
 class AsyncMemoryParams;
 struct AsyncTexImage2DParams;
 
 class AsyncPixelTransferCompletionObserver
@@ skipping 74 matching lines @@
   virtual AsyncPixelTransferDelegate* CreatePixelTransferDelegateImpl(
       gles2::TextureRef* ref,
       const AsyncTexImage2DParams& define_params) = 0;
 
   DISALLOW_COPY_AND_ASSIGN(AsyncPixelTransferManager);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_ASYNC_PIXEL_TRANSFER_MANAGER_H_