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

chrome/browser/ui/search/search_tab_helper_unittest.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/browser/ui/search/search_tab_helper.h"
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/search/search.h"
@@ skipping 276 matching lines @@
         browser()->tab_strip_model()->GetWebContentsAt(0);
   content::NavigationController* controller = &contents->GetController();
 
   SearchTabHelper* search_tab_helper =
       SearchTabHelper::FromWebContents(contents);
   ASSERT_NE(static_cast<SearchTabHelper*>(NULL), search_tab_helper);
 
   // A failed provisional load of a cacheable NTP should be redirected to local
   // NTP.
   const GURL cacheableNTPURL = chrome::GetNewTabPageURL(profile());
-  search_tab_helper->DidFailProvisionalLoad(1, string16(), true,
-      cacheableNTPURL, 1, string16(), NULL);
+  search_tab_helper->DidFailProvisionalLoad(1, base::string16(), true,
+      cacheableNTPURL, 1, base::string16(), NULL);
   CommitPendingLoad(controller);
   EXPECT_EQ(GURL(chrome::kChromeSearchLocalNtpUrl),
                  controller->GetLastCommittedEntry()->GetURL());
 }
 
 TEST_F(SearchTabHelperWindowTest, OnProvisionalLoadFailDontRedirectIfAborted) {
   AddTab(browser(), GURL("chrome://blank"));
   content::WebContents* contents =
         browser()->tab_strip_model()->GetWebContentsAt(0);
   content::NavigationController* controller = &contents->GetController();
 
   SearchTabHelper* search_tab_helper =
       SearchTabHelper::FromWebContents(contents);
   ASSERT_NE(static_cast<SearchTabHelper*>(NULL), search_tab_helper);
 
   // A failed provisional load of a cacheable NTP should be redirected to local
   // NTP.
   const GURL cacheableNTPURL = chrome::GetNewTabPageURL(profile());
-  search_tab_helper->DidFailProvisionalLoad(1, string16(), true,
-      cacheableNTPURL, net::ERR_ABORTED, string16(), NULL);
+  search_tab_helper->DidFailProvisionalLoad(1, base::string16(), true,
+      cacheableNTPURL, net::ERR_ABORTED, base::string16(), NULL);
   CommitPendingLoad(controller);
   EXPECT_EQ(GURL("chrome://blank"),
                  controller->GetLastCommittedEntry()->GetURL());
 }
 
 TEST_F(SearchTabHelperWindowTest, OnProvisionalLoadFailDontRedirectNonNTP) {
   AddTab(browser(), GURL(chrome::kChromeUINewTabURL));
   content::WebContents* contents =
         browser()->tab_strip_model()->GetWebContentsAt(0);
   content::NavigationController* controller = &contents->GetController();
 
   SearchTabHelper* search_tab_helper =
       SearchTabHelper::FromWebContents(contents);
   ASSERT_NE(static_cast<SearchTabHelper*>(NULL), search_tab_helper);
 
   // Any other web page shouldn't be redirected when provisional load fails.
-  search_tab_helper->DidFailProvisionalLoad(1, string16(), true,
-      GURL("http://www.example.com"), 1, string16(), NULL);
+  search_tab_helper->DidFailProvisionalLoad(1, base::string16(), true,
+      GURL("http://www.example.com"), 1, base::string16(), NULL);
   CommitPendingLoad(controller);
   EXPECT_NE(GURL(chrome::kChromeSearchLocalNtpUrl),
                  controller->GetLastCommittedEntry()->GetURL());
 }