Use setSequentialFocusNavigationStartingPoint in ChromeVox

chrome/browser/ui/aura/accessibility/automation_manager_aura.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/ui/aura/accessibility/automation_manager_aura.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 93 matching lines @@
       }
       current_tree_->SetSelection(
           data.anchor_node_id, data.anchor_offset, data.focus_offset);
       break;
     case ui::AX_ACTION_SHOW_CONTEXT_MENU:
       current_tree_->ShowContextMenu(data.target_node_id);
       break;
     case ui::AX_ACTION_SET_ACCESSIBILITY_FOCUS:
       // Sent by ChromeVox but doesn't need to be handled by aura.
       break;
+    case ui::AX_ACTION_SET_SEQUENTIAL_FOCUS_NAVIGATION_STARTING_POINT:
+      // Sent by ChromeVox but doesn't need to be handled by aura.
+      break;
     case ui::AX_ACTION_HIT_TEST:
     case ui::AX_ACTION_SCROLL_TO_POINT:
     case ui::AX_ACTION_SET_SCROLL_OFFSET:
     case ui::AX_ACTION_SET_VALUE:
       // Not implemented yet.
       NOTREACHED();
       break;
     case ui::AX_ACTION_NONE:
       NOTREACHED();
       break;
@@ skipping 60 matching lines @@
 
   processing_events_ = false;
   auto pending_events_copy = pending_events_;
   pending_events_.clear();
   for (size_t i = 0; i < pending_events_copy.size(); ++i) {
     SendEvent(context,
               pending_events_copy[i].first,
               pending_events_copy[i].second);
   }
 }