Add explicit base namespace to string16 users.

chrome/common/extensions/webview_handler.cc

 // Copyright 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/webview_handler.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 48 matching lines @@
   return partition_is_privileged && extension->ResourceMatches(
       info->webview_accessible_resources_, relative_path);
 }
 
 WebviewHandler::WebviewHandler() {
 }
 
 WebviewHandler::~WebviewHandler() {
 }
 
-bool WebviewHandler::Parse(Extension* extension, string16* error) {
+bool WebviewHandler::Parse(Extension* extension, base::string16* error) {
   scoped_ptr<WebviewInfo> info(new WebviewInfo());
 
   const base::DictionaryValue* dict_value = NULL;
   if (!extension->manifest()->GetDictionary(keys::kWebview,
                                             &dict_value)) {
     *error = ASCIIToUTF16(errors::kInvalidWebview);
     return false;
   }
 
   const base::ListValue* url_list = NULL;
@@ skipping 39 matching lines @@
   }
   extension->SetManifestData(keys::kWebviewAccessibleResources, info.release());
   return true;
 }
 
 const std::vector<std::string> WebviewHandler::Keys() const {
   return SingleKey(keys::kWebview);
 }
 
 }  // namespace extensions