Remove UTF string conversion functions from the global namespace.

chrome/browser/importer/firefox_importer_browsertest.cc

 // Copyright (c) 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 "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "base/stl_util.h"
@@ skipping 162 matching lines @@
 
   virtual void AddKeywords(ScopedVector<TemplateURL> template_urls,
                            bool unique_on_host_and_path) OVERRIDE {
     for (size_t i = 0; i < template_urls.size(); ++i) {
       // The order might not be deterministic, look in the expected list for
       // that template URL.
       bool found = false;
       base::string16 keyword = template_urls[i]->keyword();
       for (size_t j = 0; j < arraysize(kFirefoxKeywords); ++j) {
         if (template_urls[i]->keyword() ==
-                WideToUTF16Hack(kFirefoxKeywords[j].keyword)) {
+                base::WideToUTF16Hack(kFirefoxKeywords[j].keyword)) {
           EXPECT_EQ(kFirefoxKeywords[j].url, template_urls[i]->url());
           found = true;
           break;
         }
       }
       EXPECT_TRUE(found);
       ++keyword_count_;
     }
   }
 
@@ skipping 92 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(FirefoxProfileImporterBrowserTest,
                        MAYBE_IMPORTER(Firefox35Importer)) {
   bool import_search_engines = false;
   scoped_refptr<FirefoxObserver> observer(
       new FirefoxObserver(import_search_engines));
   Firefox3xImporterBrowserTest("firefox35_profile", observer.get(),
                                observer.get(), import_search_engines);
 }