Single pod autofocus disabled for touch view mode. Delegate class created for ash interactions.

chrome/browser/ui/webui/signin/user_manager_screen_handler.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/webui/signin/user_manager_screen_handler.h"
 
 #include "base/bind.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/value_conversions.h"
@@ skipping 477 matching lines @@
       base::Bind(&UserManagerScreenHandler::HandleAttemptUnlock,
                  base::Unretained(this)));
 
   const content::WebUI::MessageCallback& kDoNothingCallback =
       base::Bind(&HandleAndDoNothing);
 
   // Unused callbacks from screen_account_picker.js
   web_ui()->RegisterMessageCallback("accountPickerReady", kDoNothingCallback);
   web_ui()->RegisterMessageCallback("loginUIStateChanged", kDoNothingCallback);
   web_ui()->RegisterMessageCallback("hideCaptivePortal", kDoNothingCallback);
+  web_ui()->RegisterMessageCallback("getTouchViewState", kDoNothingCallback);
   // Unused callbacks from display_manager.js
   web_ui()->RegisterMessageCallback("showAddUser", kDoNothingCallback);
   web_ui()->RegisterMessageCallback("loadWallpaper", kDoNothingCallback);
   web_ui()->RegisterMessageCallback("updateCurrentScreen", kDoNothingCallback);
   web_ui()->RegisterMessageCallback("loginVisible", kDoNothingCallback);
   // Unused callbacks from user_pod_row.js
   web_ui()->RegisterMessageCallback("focusPod", kDoNothingCallback);
 }
 
 void UserManagerScreenHandler::GetLocalizedValues(
@@ skipping 163 matching lines @@
   } else {
     web_ui()->CallJavascriptFunction(
         "cr.ui.Oobe.showSignInError",
         base::FundamentalValue(0),
         base::StringValue(
             l10n_util::GetStringUTF8(IDS_LOGIN_ERROR_AUTHENTICATING)),
         base::StringValue(""),
         base::FundamentalValue(0));
   }
 }