gpu: Refactor memory buffer handling code out of content.

base/threading/thread_restrictions.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 BASE_THREADING_THREAD_RESTRICTIONS_H_
 #define BASE_THREADING_THREAD_RESTRICTIONS_H_
 
 #include "base/base_export.h"
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 34 matching lines @@
 }  // namespace content
 namespace dbus {
 class Bus;
 }
 namespace disk_cache {
 class BackendImpl;
 class InFlightIO;
 }
 namespace gpu {
 class GpuChannelHost;
+class GpuHostMemoryBufferManager;
 }
 namespace mojo {
 class SyncCallRestrictions;
 }
 namespace ui {
 class CommandBufferClientImpl;
 class CommandBufferLocal;
 class GpuState;
 }
 namespace net {
@@ skipping 157 matching lines @@
   friend class chrome_browser_net::Predictor;     // http://crbug.com/78451
   friend class
       content::BrowserGpuChannelHostFactory;      // http://crbug.com/125248
   friend class
       content::BrowserGpuMemoryBufferManager;     // http://crbug.com/420368
   friend class content::TextInputClientMac;       // http://crbug.com/121917
   friend class dbus::Bus;                         // http://crbug.com/125222
   friend class disk_cache::BackendImpl;           // http://crbug.com/74623
   friend class disk_cache::InFlightIO;            // http://crbug.com/74623
   friend class gpu::GpuChannelHost;               // http://crbug.com/125264
+  friend class gpu::GpuHostMemoryBufferManager;   // http://crbug.com/125248
   friend class net::internal::AddressTrackerLinux;  // http://crbug.com/125097
   friend class net::NetworkChangeNotifierMac;     // http://crbug.com/125097
   friend class ::BrowserProcessImpl;              // http://crbug.com/125207
   friend class ::NativeBackendKWallet;            // http://crbug.com/125331
 #if !defined(OFFICIAL_BUILD)
   friend class content::SoftwareOutputDeviceMus;  // Interim non-production code
 #endif
   friend class views::ScreenMus;
 // END USAGE THAT NEEDS TO BE FIXED.
 
@@ skipping 18 matching lines @@
 
     DISALLOW_COPY_AND_ASSIGN(ScopedAllowWait);
   };
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ThreadRestrictions);
 };
 
 }  // namespace base
 
 #endif  // BASE_THREADING_THREAD_RESTRICTIONS_H_