Moved the AppNotification system into extensions namespace

chrome/browser/extensions/app_notification.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 "chrome/browser/extensions/app_notification.h"
 
 #include "base/guid.h"
 #include "base/json/json_writer.h"
 #include "base/string_number_conversions.h"
 #include "base/memory/scoped_ptr.h"
 
+namespace extensions {
+
 namespace {
 
 const char* kIsLocalKey = "is_local";
 const char* kCreationTime= "creation_time";
 const char* kGuidKey = "guid";
 const char* kExtensionIdKey = "extension_id";
 const char* kTitleKey = "title";
 const char* kBodyKey = "body";
 const char* kLinkUrlKey = "link_url";
 const char* kLinkTextKey = "link_text";
@@ skipping 124 matching lines @@
 AppNotificationList* CopyAppNotificationList(
     const AppNotificationList& source) {
   AppNotificationList* copy = new AppNotificationList();
 
   for (AppNotificationList::const_iterator iter = source.begin();
       iter != source.end(); ++iter) {
     copy->push_back(linked_ptr<AppNotification>(iter->get()->Copy()));
   }
   return copy;
 }
+
+}  // namespace extensions