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

chrome/browser/sync/glue/session_sync_test_helper.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/sync/glue/session_sync_test_helper.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/sync/glue/synced_session.h"
 #include "sync/protocol/session_specifics.pb.h"
 #include "sync/protocol/sync_enums.pb.h"
@@ skipping 66 matching lines @@
       ASSERT_EQ(*tab_iter, tab->tab_id.id());
       ASSERT_EQ(1U, tab->navigations.size());
       ASSERT_EQ(1, tab->tab_visual_index);
       ASSERT_EQ(0, tab->current_navigation_index);
       ASSERT_TRUE(tab->pinned);
       ASSERT_EQ(kAppId, tab->extension_app_id);
       ASSERT_EQ(1U, tab->navigations.size());
       ASSERT_EQ(tab->navigations[0].virtual_url(), GURL(kVirtualUrl));
       ASSERT_EQ(tab->navigations[0].referrer().url, GURL(kReferrer));
       ASSERT_EQ(tab->navigations[0].title(),
-                base::string16(ASCIIToUTF16(kTitle)));
+                base::ASCIIToUTF16(kTitle));
       ASSERT_EQ(tab->navigations[0].transition_type(),
                 content::PAGE_TRANSITION_TYPED);
     }
   }
 }
 
 void SessionSyncTestHelper::BuildTabSpecifics(
     const std::string& tag,
     int window_id,
     int tab_id,
@@ skipping 29 matching lines @@
   for (size_t i = 0; i < tab_list.size(); ++i) {
     BuildTabSpecifics(tag, 0, tab_list[i], &tabs1[i]);
   }
 
   if (tabs)
     tabs->swap(tabs1);
   return meta;
 }
 
 }  // namespace browser_sync