Replace ToLower calls to the new format

android_webview/browser/aw_content_browser_client.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 "android_webview/browser/aw_content_browser_client.h"
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_browser_main_parts.h"
 #include "android_webview/browser/aw_contents_client_bridge_base.h"
 #include "android_webview/browser/aw_contents_io_thread_client.h"
@@ skipping 100 matching lines @@
 
 }  // anonymous namespace
 
 // static
 std::string AwContentBrowserClient::GetAcceptLangsImpl() {
   // Start with the current locale.
   std::string langs = g_locale_manager->GetLocale();
 
   // If we're not en-US, add in en-US which will be
   // used with a lower q-value.
-  if (base::StringToLowerASCII(langs) != "en-us") {
+  if (base::ToLowerASCII(langs) != "en-us") {
     langs += ",en-US";
   }
   return langs;
 }
 
 // static
 AwBrowserContext* AwContentBrowserClient::GetAwBrowserContext() {
   return AwBrowserContext::GetDefault();
 }
 
@@ skipping 297 matching lines @@
 
 #if defined(VIDEO_HOLE)
 content::ExternalVideoSurfaceContainer*
 AwContentBrowserClient::OverrideCreateExternalVideoSurfaceContainer(
     content::WebContents* web_contents) {
   return native_factory_->CreateExternalVideoSurfaceContainer(web_contents);
 }
 #endif
 
 }  // namespace android_webview