Revert of Use setSequentialFocusNavigationStartingPoint in ChromeVox

chrome/browser/extensions/api/automation_internal/automation_internal_api.cc

 // Copyright 2014 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/extensions/api/automation_internal/automation_internal_api.h"
 
 #include <stdint.h>
 
 #include <vector>
 
@@ skipping 369 matching lines @@
     case api::automation_internal::ACTION_TYPE_SHOWCONTEXTMENU: {
       action.action = ui::AX_ACTION_SHOW_CONTEXT_MENU;
       adapter->PerformAction(action);
       break;
     }
     case api::automation_internal::ACTION_TYPE_SETACCESSIBILITYFOCUS: {
       action.action = ui::AX_ACTION_SET_ACCESSIBILITY_FOCUS;
       adapter->PerformAction(action);
       break;
     }
-    case api::automation_internal::
-        ACTION_TYPE_SETSEQUENTIALFOCUSNAVIGATIONSTARTINGPOINT: {
-      action.action =
-          ui::AX_ACTION_SET_SEQUENTIAL_FOCUS_NAVIGATION_STARTING_POINT;
-      adapter->PerformAction(action);
-      break;
-    }
     default:
       NOTREACHED();
   }
   return RespondNow(NoArguments());
 }
 
 ExtensionFunction::ResponseAction
 AutomationInternalEnableDesktopFunction::Run() {
 #if defined(USE_AURA)
   const AutomationInfo* automation_info = AutomationInfo::Get(extension());
@@ skipping 58 matching lines @@
   if (!error.empty()) {
     Respond(Error(error));
     return;
   }
 
   Respond(
       OneArgument(base::MakeUnique<base::FundamentalValue>(result_acc_obj_id)));
 }
 
 }  // namespace extensions