Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

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/basictypes.h"
 
 // See comment at top of thread_checker.h
 #if (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON))
 #define ENABLE_THREAD_RESTRICTIONS 1
 #else
 #define ENABLE_THREAD_RESTRICTIONS 0
 #endif
 
 class AcceleratedPresenter;
 class BrowserProcessImpl;
 class HistogramSynchronizer;
-class GpuChannelHost;
 class MetricsService;
 class NativeBackendKWallet;
 class ScopedAllowWaitForLegacyWebViewApi;
 class TestingAutomationProvider;
 class TextInputClientMac;
 
 namespace browser_sync {
 class NonFrontendDataTypeController;
 class UIModelWorker;
 }
 namespace cc {
 class CCCompletionEvent;
 }
 namespace chromeos {
 class AudioMixerAlsa;
 class BlockingMethodCaller;
 namespace system {
 class StatisticsProviderImpl;
 }
 }
 namespace chrome_browser_net {
 class Predictor;
 }
 namespace content {
 class BrowserGpuChannelHostFactory;
 class GLHelper;
+class GpuChannelHost;
 class RenderWidgetHelper;
 }
 namespace dbus {
 class Bus;
 }
 namespace disk_cache {
 class BackendImpl;
 class InFlightIO;
 }
 namespace media {
@@ skipping 124 matching lines @@
   // BEGIN USAGE THAT NEEDS TO BE FIXED.
   friend class ::chromeos::AudioMixerAlsa;        // http://crbug.com/125206
   friend class ::chromeos::BlockingMethodCaller;  // http://crbug.com/125360
   friend class ::chromeos::system::StatisticsProviderImpl;  // http://crbug.com/125385
   friend class browser_sync::NonFrontendDataTypeController;  // http://crbug.com/19757
   friend class browser_sync::UIModelWorker;       // http://crbug.com/19757
   friend class chrome_browser_net::Predictor;     // http://crbug.com/78451
   friend class
       content::BrowserGpuChannelHostFactory;      // http://crbug.com/125248
   friend class content::GLHelper;                 // http://crbug.com/125415
+  friend class content::GpuChannelHost;           // http://crbug.com/125264
   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 media::AudioOutputController;      // http://crbug.com/120973
   friend class net::FileStreamPosix;              // http://crbug.com/115067
   friend class net::FileStreamWin;                // http://crbug.com/115067
   friend class net::NetworkManagerApi;            // http://crbug.com/125097
   friend class ::AcceleratedPresenter;            // http://crbug.com/125391
   friend class ::BrowserProcessImpl;              // http://crbug.com/125207
-  friend class ::GpuChannelHost;                  // http://crbug.com/125264
   friend class ::MetricsService;                  // http://crbug.com/124954
   friend class ::TextInputClientMac;              // http://crbug.com/121917
   friend class ::NativeBackendKWallet;            // http://crbug.com/125331
   // END USAGE THAT NEEDS TO BE FIXED.
 
 #if ENABLE_THREAD_RESTRICTIONS
   static bool SetWaitAllowed(bool allowed);
 #else
   static bool SetWaitAllowed(bool allowed) { return true; }
 #endif
@@ skipping 13 matching lines @@
 
     DISALLOW_COPY_AND_ASSIGN(ScopedAllowWait);
   };
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ThreadRestrictions);
 };
 
 }  // namespace base
 
 #endif  // BASE_THREADING_THREAD_RESTRICTIONS_H_