Convert string16 to base::string16 in content.

content/shell/geolocation/shell_access_token_store.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_SHELL_GEOLOCATION_SHELL_ACCESS_TOKEN_STORE_H_
 #define CONTENT_SHELL_GEOLOCATION_SHELL_ACCESS_TOKEN_STORE_H_
 
 #include "content/public/browser/access_token_store.h"
 
 namespace content {
@@ skipping 10 matching lines @@
 
   void GetRequestContextOnUIThread(
       content::ShellBrowserContext* shell_browser_context);
   void RespondOnOriginatingThread(const LoadAccessTokensCallbackType& callback);
 
   // AccessTokenStore
   virtual void LoadAccessTokens(
       const LoadAccessTokensCallbackType& callback) OVERRIDE;
 
   virtual void SaveAccessToken(
-      const GURL& server_url, const string16& access_token) OVERRIDE;
+      const GURL& server_url, const base::string16& access_token) OVERRIDE;
 
   content::ShellBrowserContext* shell_browser_context_;
   net::URLRequestContextGetter* system_request_context_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellAccessTokenStore);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_GEOLOCATION_SHELL_ACCESS_TOKEN_STORE_H_