Add base:: to string16s in chrome/.

chrome/test/chromedriver/capabilities.h

 // Copyright (c) 2013 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_TEST_CHROMEDRIVER_CAPABILITIES_H_
 #define CHROME_TEST_CHROMEDRIVER_CAPABILITIES_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 14 matching lines @@
 class Status;
 
 class Switches {
  public:
   typedef base::FilePath::StringType NativeString;
   Switches();
   ~Switches();
 
   void SetSwitch(const std::string& name);
   void SetSwitch(const std::string& name, const std::string& value);
-  void SetSwitch(const std::string& name, const string16& value);
+  void SetSwitch(const std::string& name, const base::string16& value);
   void SetSwitch(const std::string& name, const base::FilePath& value);
 
   // In case of same key, |switches| will override.
   void SetFromSwitches(const Switches& switches);
 
   // Sets a switch from the capabilities, of the form [--]name[=value].
   void SetUnparsedSwitch(const std::string& unparsed_switch);
 
   void RemoveSwitch(const std::string& name);
 
@@ skipping 63 matching lines @@
 
   // If set, enable minidump for chrome crashes and save to this directory.
   std::string minidump_path;
 
   scoped_ptr<base::DictionaryValue> prefs;
 
   Switches switches;
 };
 
 #endif  // CHROME_TEST_CHROMEDRIVER_CAPABILITIES_H_