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

content/common/gpu/sync_point_manager.cc

 // 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.
 
 #include "content/common/gpu/sync_point_manager.h"
 
 #include "base/logging.h"
 
+namespace content {
+
 SyncPointManager::SyncPointManager()
     : next_sync_point_(1) {
 }
 
 SyncPointManager::~SyncPointManager() {
 }
 
 uint32 SyncPointManager::GenerateSyncPoint() {
   base::AutoLock lock(lock_);
   uint32 sync_point = next_sync_point_++;
@@ skipping 28 matching lines @@
   {
     base::AutoLock lock(lock_);
     SyncPointMap::iterator it = sync_point_map_.find(sync_point);
     if (it != sync_point_map_.end()) {
       it->second.push_back(callback);
       return;
     }
   }
   callback.Run();
 }
+
+}  // namespace content