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

chrome/browser/ui/ash/launcher/chrome_launcher_controller_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/ash/launcher/chrome_launcher_controller.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 52 matching lines @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile_manager.h"
 #include "components/variations/entropy_provider.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/test/test_utils.h"
 #include "ui/aura/window.h"
 #include "ui/views/test/test_views_delegate.h"
 #endif
 
+using base::ASCIIToUTF16;
 using extensions::Extension;
 using extensions::Manifest;
 using extensions::UnloadedExtensionInfo;
 
 namespace {
 const char* offline_gmail_url = "https://mail.google.com/mail/mu/u";
 const char* gmail_url = "https://mail.google.com/mail/u";
 const char* kGmailLaunchURL = "https://mail.google.com/mail/ca";
 
 // As defined in /chromeos/dbus/cryptohome_client.cc.
@@ skipping 2655 matching lines @@
 
   EXPECT_EQ(1, app_icon_loader->fetch_count());
   ASSERT_EQ(initial_size + 1, model_->items().size());
   EXPECT_TRUE(launcher_controller_->IsAppPinned("1"));
   EXPECT_FALSE(launcher_controller_->IsAppPinned("0"));
   EXPECT_EQ(ash::TYPE_APP_SHORTCUT, model_->items()[app_index].type);
 
   launcher_controller_->UnpinAppWithID("1");
   ASSERT_EQ(initial_size, model_->items().size());
 }