Fix Chrome OS virtual keyboard accessibility

ui/views/view.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.
 
 #define _USE_MATH_DEFINES // For VC++ to get M_PI. This has to be first.
 
 #include "ui/views/view.h"
 
 #include <algorithm>
 #include <cmath>
@@ skipping 1405 matching lines @@
           ui::ET_MOUSE_RELEASED, center, center, ui::EventTimeForNow(),
           ui::EF_LEFT_MOUSE_BUTTON, ui::EF_LEFT_MOUSE_BUTTON));
       return true;
     }
     case ui::AX_ACTION_FOCUS:
       if (IsAccessibilityFocusable()) {
         RequestFocus();
         return true;
       }
       break;
+    case ui::AX_ACTION_HIT_TEST:
+      NotifyAccessibilityEvent(action_data.hit_test_event_to_fire, true);
+      return true;
     case ui::AX_ACTION_SCROLL_TO_MAKE_VISIBLE:
       ScrollRectToVisible(GetLocalBounds());
       return true;
     case ui::AX_ACTION_SHOW_CONTEXT_MENU:
       ShowContextMenu(GetBoundsInScreen().CenterPoint(),
                       ui::MENU_SOURCE_KEYBOARD);
       return true;
     default:
       // Some actions are handled by subclasses of View.
       break;
@@ skipping 1208 matching lines @@
   // Message the RootView to do the drag and drop. That way if we're removed
   // the RootView can detect it and avoid calling us back.
   gfx::Point widget_location(event.location());
   ConvertPointToWidget(this, &widget_location);
   widget->RunShellDrag(this, data, widget_location, drag_operations, source);
   // WARNING: we may have been deleted.
   return true;
 }
 
 }  // namespace views