Add explicit base namespace to string16 users.

chrome/common/custom_handlers/protocol_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/custom_handlers/protocol_handler.h"
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "net/base/escape.h"
 
 
 ProtocolHandler::ProtocolHandler(const std::string& protocol,
                                  const GURL& url,
-                                 const string16& title)
+                                 const base::string16& title)
     : protocol_(protocol),
       url_(url),
       title_(title) {
 }
 
 ProtocolHandler ProtocolHandler::CreateProtocolHandler(
     const std::string& protocol,
     const GURL& url,
-    const string16& title) {
+    const base::string16& title) {
   std::string lower_protocol = StringToLowerASCII(protocol);
   return ProtocolHandler(lower_protocol, url, title);
 }
 
 ProtocolHandler::ProtocolHandler() {
 }
 
 bool ProtocolHandler::IsValidDict(const base::DictionaryValue* value) {
   return value->HasKey("protocol") && value->HasKey("url") &&
     value->HasKey("title");
 }
 
 bool ProtocolHandler::IsSameOrigin(
     const ProtocolHandler& handler) const {
   return handler.url().GetOrigin() == url_.GetOrigin();
 }
 
 const ProtocolHandler& ProtocolHandler::EmptyProtocolHandler() {
   static const ProtocolHandler* const kEmpty = new ProtocolHandler();
   return *kEmpty;
 }
 
 ProtocolHandler ProtocolHandler::CreateProtocolHandler(
     const base::DictionaryValue* value) {
   if (!IsValidDict(value)) {
     return EmptyProtocolHandler();
   }
   std::string protocol, url;
-  string16 title;
+  base::string16 title;
   value->GetString("protocol", &protocol);
   value->GetString("url", &url);
   value->GetString("title", &title);
   return ProtocolHandler::CreateProtocolHandler(protocol, GURL(url), title);
 }
 
 GURL ProtocolHandler::TranslateUrl(const GURL& url) const {
   std::string translatedUrlSpec(url_.spec());
   ReplaceSubstringsAfterOffset(&translatedUrlSpec, 0, "%s",
       net::EscapeQueryParamValue(url.spec(), true));
@@ skipping 23 matching lines @@
     title_ == other.title_;
 }
 
 bool ProtocolHandler::IsEquivalent(const ProtocolHandler& other) const {
   return protocol_ == other.protocol_ && url_ == other.url_;
 }
 
 bool ProtocolHandler::operator<(const ProtocolHandler& other) const {
   return title_ < other.title_;
 }