Convert string16 to base::string16 in content.

content/child/webmessageportchannel_impl.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_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_
 #define CONTENT_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_
 
 #include <queue>
 #include <vector>
 
@@ skipping 40 matching lines @@
   virtual bool tryGetMessage(blink::WebString* message,
                              blink::WebMessagePortChannelArray& channels);
 
   void Init();
   void Entangle(scoped_refptr<WebMessagePortChannelImpl> channel);
   void Send(IPC::Message* message);
 
   // IPC::Listener implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
-  void OnMessage(const string16& message,
+  void OnMessage(const base::string16& message,
                  const std::vector<int>& sent_message_port_ids,
                  const std::vector<int>& new_routing_ids);
   void OnMessagesQueued();
 
   struct Message {
     Message();
     ~Message();
 
-    string16 message;
+    base::string16 message;
     std::vector<WebMessagePortChannelImpl*> ports;
   };
 
   typedef std::queue<Message> MessageQueue;
   MessageQueue message_queue_;
 
   blink::WebMessagePortChannelClient* client_;
   base::Lock lock_;  // Locks access to above.
 
   int route_id_;  // The routing id for this object.
   int message_port_id_;  // A globally unique identifier for this message port.
   scoped_refptr<base::MessageLoopProxy> child_thread_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMessagePortChannelImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_