Move a bunch of content\common code into the content namespace.

content/renderer/active_notification_tracker.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_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_
 #define CONTENT_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/id_map.h"
 #include "base/hash_tables.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNotification.h"
 
 namespace WebKit {
 class WebNotificationPermissionCallback;
 }
 
+namespace content {
+
 // This class manages the set of active Notification objects in either
 // a render or worker process.  This class should be accessed only on
 // the main thread.
 class CONTENT_EXPORT ActiveNotificationTracker {
  public:
   ActiveNotificationTracker();
   ~ActiveNotificationTracker();
 
   // Methods for tracking active notification objects.
   int RegisterNotification(const WebKit::WebNotification& notification);
@@ skipping 18 matching lines @@
   typedef std::map<WebKit::WebNotification, int> ReverseTable;
 
   // Tracking maps for active notifications and permission requests.
   IDMap<WebKit::WebNotification> notification_table_;
   ReverseTable reverse_notification_table_;
   IDMap<WebKit::WebNotificationPermissionCallback> callback_table_;
 
   DISALLOW_COPY_AND_ASSIGN(ActiveNotificationTracker);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_