Update uses of UTF conversions in chrome/common to use the base:: namespace.

chrome/common/extensions/api/extension_action/script_badge_handler.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/common/extensions/api/extension_action/script_badge_handler.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/common/extensions/extension_constants.h"
@@ skipping 32 matching lines @@
   // So as to not confuse developers if they specify a script badge section
   // in the manifest, show a warning if the script badge declaration isn't
   // going to have any effect.
   if (!FeatureSwitch::script_badges()->IsEnabled()) {
     extension->AddInstallWarning(
         InstallWarning(errors::kScriptBadgeRequiresFlag, keys::kScriptBadge));
   }
 
   const base::DictionaryValue* dict = NULL;
   if (!extension->manifest()->GetDictionary(keys::kScriptBadge, &dict)) {
-    *error = ASCIIToUTF16(errors::kInvalidScriptBadge);
+    *error = base::ASCIIToUTF16(errors::kInvalidScriptBadge);
     return false;
   }
 
   action_info = ActionInfo::Load(extension, dict, error);
 
   if (!action_info.get())
     return false;  // Failed to parse script badge definition.
 
   // Script badges always use their extension's title and icon so users can rely
   // on the visual appearance to know which extension is running.  This isn't
@@ skipping 37 matching lines @@
           extension_misc::kScriptBadgeIconSizes[i], path);
     }
   }
 }
 
 const std::vector<std::string> ScriptBadgeHandler::Keys() const {
   return SingleKey(keys::kScriptBadge);
 }
 
 }  // namespace extensions