Update some uses of char16 to use the base:: namespace.

chrome/browser/autocomplete/shortcuts_provider.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_AUTOCOMPLETE_SHORTCUTS_PROVIDER_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_SHORTCUTS_PROVIDER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 23 matching lines @@
   // performed |minimal_changes| is ignored.
   virtual void Start(const AutocompleteInput& input,
                      bool minimal_changes) OVERRIDE;
 
   virtual void DeleteMatch(const AutocompleteMatch& match) OVERRIDE;
 
  private:
   friend class ClassifyTest;
   friend class history::ShortcutsProviderTest;
 
-  typedef std::multimap<char16, base::string16> WordMap;
+  typedef std::multimap<base::char16, base::string16> WordMap;
 
   virtual ~ShortcutsProvider();
 
   // ShortcutsBackendObserver:
   virtual void OnShortcutsLoaded() OVERRIDE;
 
   // Performs the autocomplete matching and scoring.
   void GetMatches(const AutocompleteInput& input);
 
   // Returns an AutocompleteMatch corresponding to |shortcut|. Assigns it
@@ skipping 50 matching lines @@
   int CalculateScore(
       const base::string16& terms,
       const history::ShortcutsBackend::Shortcut& shortcut,
       int max_relevance);
 
   std::string languages_;
   bool initialized_;
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_SHORTCUTS_PROVIDER_H_