Redesign cast-mode-picker UX and switch to core/paper elements.

chrome/browser/ui/webui/media_router/media_router_localized_strings_provider.cc

 // Copyright 2015 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/webui/media_router/media_router_localized_strings_provider.h"
 
 #include "chrome/grit/generated_resources.h"
 #include "content/public/browser/web_ui_data_source.h"
 
 namespace {
 
 // Note that media_router.html contains a <script> tag which imports a script
 // of the following name. These names must be kept in sync.
 const char kLocalizedStringsFile[] = "strings.js";
 
 void AddMediaRouterStrings(content::WebUIDataSource* html_source) {
   html_source->AddLocalizedString("mediaRouterTitle", IDS_MEDIA_ROUTER_TITLE);
 }
 
 void AddRouteDetailsStrings(content::WebUIDataSource* html_source) {
+  html_source->AddLocalizedString("backToSinkPicker",
+      IDS_MEDIA_ROUTER_BACK_TO_SINK_PICKER);
   html_source->AddLocalizedString("castingActivityStatus",
       IDS_MEDIA_ROUTER_CASTING_ACTIVITY_STATUS);
-  html_source->AddLocalizedString("backToSinkPicker",
-      IDS_MEDIA_ROUTER_BACK_TO_SINK_PICKER);
+  html_source->AddLocalizedString("selectCastModeHeader",
+      IDS_MEDIA_ROUTER_SELECT_CAST_MODE_HEADER);
   html_source->AddLocalizedString("stopCastingButton",
       IDS_MEDIA_ROUTER_STOP_CASTING_BUTTON);
 }
 
 }  // namespace
 
 namespace media_router {
 
 void AddLocalizedStrings(content::WebUIDataSource* html_source) {
   AddMediaRouterStrings(html_source);
   AddRouteDetailsStrings(html_source);
   html_source->SetJsonPath(kLocalizedStringsFile);
 }
 
 }  // namespace media_router