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

chrome/common/extensions/manifest_handlers/content_scripts_handler.cc

 // 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.
 
 #include "chrome/common/extensions/manifest_handlers/content_scripts_handler.h"
 
 #include "base/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 366 matching lines @@
   static const char* keys[] = {
     keys::kContentScripts
   };
   return std::vector<std::string>(keys, keys + arraysize(keys));
 }
 
 bool ContentScriptsHandler::Parse(Extension* extension, base::string16* error) {
   scoped_ptr<ContentScriptsInfo> content_scripts_info(new ContentScriptsInfo);
   const base::ListValue* scripts_list = NULL;
   if (!extension->manifest()->GetList(keys::kContentScripts, &scripts_list)) {
-    *error = ASCIIToUTF16(errors::kInvalidContentScriptsList);
+    *error = base::ASCIIToUTF16(errors::kInvalidContentScriptsList);
     return false;
   }
 
   for (size_t i = 0; i < scripts_list->GetSize(); ++i) {
     const base::DictionaryValue* script_dict = NULL;
     if (!scripts_list->GetDictionary(i, &script_dict)) {
       *error = ErrorUtils::FormatErrorMessageUTF16(
           errors::kInvalidContentScript,
           base::IntToString(i));
       return false;
@@ skipping 61 matching lines @@
       if (!IsScriptValid(path, css_script.relative_path(),
                          IDS_EXTENSION_LOAD_CSS_FAILED, error))
         return false;
     }
   }
 
   return true;
 }
 
 }  // namespace extensions