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

chrome/browser/ui/extensions/application_launch.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/ui/extensions/application_launch.h"
 
 #include <string>
 
 #include "apps/launcher.h"
 #include "base/command_line.h"
@@ skipping 339 matching lines @@
     SigninManager* signin_manager =
         SigninManagerFactory::GetForProfile(profile);
     if (signin_manager && signin_manager->GetAuthenticatedUsername().empty()) {
       const char kEnforceSigninToUseAppsFieldTrial[] = "EnforceSigninToUseApps";
 
       std::string field_trial_value =
           base::FieldTrialList::FindFullName(kEnforceSigninToUseAppsFieldTrial);
 
       // Only enforce signin if the field trial is set.
       if (!field_trial_value.empty()) {
-        GURL gurl(l10n_util::GetStringFUTF8(IDS_APP_LAUNCH_NOT_SIGNED_IN_LINK,
-                                            UTF8ToUTF16(extension->id())));
+        GURL gurl(l10n_util::GetStringFUTF8(
+            IDS_APP_LAUNCH_NOT_SIGNED_IN_LINK,
+            base::UTF8ToUTF16(extension->id())));
         chrome::NavigateParams navigate_params(profile, gurl,
                                                content::PAGE_TRANSITION_LINK);
         navigate_params.host_desktop_type = params.desktop_type;
         chrome::Navigate(&navigate_params);
         return NULL;
       }
     }
 #endif
 
     apps::LaunchPlatformAppWithCommandLine(
@@ skipping 135 matching lines @@
   // up in LoadingStateChanged to schedule a GetApplicationInfo. And when
   // the web app info is available, extensions::TabHelper notifies Browser via
   // OnDidGetApplicationInfo, which calls
   // web_app::UpdateShortcutForTabContents when it sees UPDATE_SHORTCUT as
   // pending web app action.
   extensions::TabHelper::FromWebContents(tab)->set_pending_web_app_action(
       extensions::TabHelper::UPDATE_SHORTCUT);
 
   return tab;
 }