chrome: Use stl utilities from the base namespace

chrome/browser/chromeos/file_manager/file_browser_handlers.cc

 // 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.
 
 #include "chrome/browser/chromeos/file_manager/file_browser_handlers.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <set>
 #include <utility>
@@ skipping 502 matching lines @@
       common_handlers = handlers;
     } else {
       // For all additional files, find intersection between the accumulated and
       // file specific set.
       FileBrowserHandlerList intersection;
       std::set<const FileBrowserHandler*> common_handler_set(
           common_handlers.begin(), common_handlers.end());
 
       for (FileBrowserHandlerList::const_iterator itr = handlers.begin();
            itr != handlers.end(); ++itr) {
-        if (ContainsKey(common_handler_set, *itr))
+        if (base::ContainsKey(common_handler_set, *itr))
           intersection.push_back(*itr);
       }
 
       std::swap(common_handlers, intersection);
       if (common_handlers.empty())
         return FileBrowserHandlerList();
     }
   }
 
   return common_handlers;
 }
 
 }  // namespace file_browser_handlers
 }  // namespace file_manager