Update automation API when aura window bounds changes.

ui/views/accessibility/ax_window_obj_wrapper.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 "ui/views/accessibility/ax_window_obj_wrapper.h"
 
 #include <stddef.h>
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/accessibility/ax_node_data.h"
@@ skipping 58 matching lines @@
   if (widget)
     AXAuraObjCache::GetInstance()->Remove(widget);
 }
 
 void AXWindowObjWrapper::OnWindowHierarchyChanged(
     const HierarchyChangeParams& params) {
   if (params.phase == WindowObserver::HierarchyChangeParams::HIERARCHY_CHANGED)
     AXAuraObjCache::GetInstance()->Remove(params.target, params.old_parent);
 }
 
+void AXWindowObjWrapper::OnWindowBoundsChanged(aura::Window* window,
+                                               const gfx::Rect& old_bounds,
+                                               const gfx::Rect& new_bounds) {
+  Widget* widget = Widget::GetWidgetForNativeView(window);
+  if (widget) {
+    widget->GetRootView()->NotifyAccessibilityEvent(
+        ui::AX_EVENT_LOCATION_CHANGED, true);
+  }
+}
+
 }  // namespace views