Replace string16 with base::string16.

chrome/browser/devtools/devtools_file_helper.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 CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 30 matching lines @@
   DevToolsFileHelper(content::WebContents* web_contents, Profile* profile);
   ~DevToolsFileHelper();
 
   typedef base::Callback<void(void)> SaveCallback;
   typedef base::Callback<void(void)> AppendCallback;
   typedef base::Callback<
       void(const std::vector<DevToolsFileHelper::FileSystem>&)>
       RequestFileSystemsCallback;
   typedef base::Callback<void(const DevToolsFileHelper::FileSystem&)>
       AddFileSystemCallback;
-  typedef base::Callback<void(const string16&,
+  typedef base::Callback<void(const base::string16&,
                               const base::Callback<void(bool)>&)>
       ShowInfoBarCallback;
 
   // Saves |content| to the file and associates its path with given |url|.
   // If client is calling this method with given |url| for the first time
   // or |save_as| is true, confirmation dialog is shown to the user.
   void Save(const std::string& url,
             const std::string& content,
             bool save_as,
             const SaveCallback& saveCallback,
@@ skipping 65 matching lines @@
 
   content::WebContents* web_contents_;
   Profile* profile_;
   typedef std::map<std::string, base::FilePath> PathsMap;
   PathsMap saved_files_;
   base::WeakPtrFactory<DevToolsFileHelper> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(DevToolsFileHelper);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_