Add base:: namespace to straggling string16s left in chrome/browser/ui.

chrome/browser/ui/webui/history_ui.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/ui/webui/history_ui.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 299 matching lines @@
   result->SetString("title", title_to_set);
 }
 
 scoped_ptr<DictionaryValue> BrowsingHistoryHandler::HistoryEntry::ToValue(
     BookmarkModel* bookmark_model,
     ManagedUserService* managed_user_service,
     const ProfileSyncService* sync_service) const {
   scoped_ptr<DictionaryValue> result(new DictionaryValue());
   SetUrlAndTitle(result.get());
 
-  string16 domain = net::IDNToUnicode(url.host(), accept_languages);
+  base::string16 domain = net::IDNToUnicode(url.host(), accept_languages);
   // When the domain is empty, use the scheme instead. This allows for a
   // sensible treatment of e.g. file: URLs when group by domain is on.
   if (domain.empty())
     domain = UTF8ToUTF16(url.scheme() + ":");
 
   result->SetString("domain", domain);
   result->SetDouble("time", time.ToJsTime());
 
   // Pass the timestamps in a list.
   scoped_ptr<ListValue> timestamps(new ListValue);
@@ skipping 672 matching lines @@
   return GURL(std::string(chrome::kChromeUIHistoryURL) + "#q=" +
               net::EscapeQueryParamValue(UTF16ToUTF8(text), true));
 }
 
 // static
 base::RefCountedMemory* HistoryUI::GetFaviconResourceBytes(
       ui::ScaleFactor scale_factor) {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytesForScale(IDR_HISTORY_FAVICON, scale_factor);
 }