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

chrome/browser/sync/test/integration/search_engines_helper.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/sync/test/integration/search_engines_helper.h"
 
 #include <vector>
 
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 90 matching lines @@
     LOG(INFO) << "A had default with URL: " << default_a->url()
               << " and keyword: " << default_a->keyword();
   }
 
   return true;
 }
 
 // Convenience helper for consistently generating the same keyword for a given
 // seed.
 base::string16 CreateKeyword(int seed) {
-  return ASCIIToUTF16(base::StringPrintf("test%d", seed));
+  return base::ASCIIToUTF16(base::StringPrintf("test%d", seed));
 }
 
 }  // namespace
 
 namespace search_engines_helper {
 
 TemplateURLService* GetServiceForBrowserContext(int profile_index) {
   return TemplateURLServiceFactory::GetForProfile(
       test()->GetProfile(profile_index));
 }
@@ skipping 136 matching lines @@
   service->SetDefaultSearchProvider(turl);
   if (test()->use_verifier()) {
     TemplateURL* verifier_turl =
         GetVerifierService()->GetTemplateURLForKeyword(CreateKeyword(seed));
     ASSERT_TRUE(verifier_turl);
     GetVerifierService()->SetDefaultSearchProvider(verifier_turl);
   }
 }
 
 }  // namespace search_engines_helper