Send Android accessibility event when object location changes

content/browser/accessibility/browser_accessibility_android.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 "content/browser/accessibility/browser_accessibility_android.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/accessibility/browser_accessibility_manager_android.h"
 #include "content/common/accessibility_messages.h"
 
@@ skipping 37 matching lines @@
 }
 
 BrowserAccessibilityAndroid::BrowserAccessibilityAndroid() {
   first_time_ = true;
 }
 
 bool BrowserAccessibilityAndroid::IsNative() const {
   return true;
 }
 
+void BrowserAccessibilityAndroid::OnLocationChanged() {
+  manager()->NotifyAccessibilityEvent(ui::AX_EVENT_LOCATION_CHANGED, this);
+}
+
 bool BrowserAccessibilityAndroid::PlatformIsLeaf() const {
   if (InternalChildCount() == 0)
     return true;
 
   // Iframes are always allowed to contain children.
   if (IsIframe() ||
       GetRole() == ui::AX_ROLE_ROOT_WEB_AREA ||
       GetRole() == ui::AX_ROLE_WEB_AREA) {
     return false;
   }
@@ skipping 575 matching lines @@
 int BrowserAccessibilityAndroid::CountChildrenWithRole(ui::AXRole role) const {
   int count = 0;
   for (uint32 i = 0; i < PlatformChildCount(); i++) {
     if (PlatformGetChild(i)->GetRole() == role)
       count++;
   }
   return count;
 }
 
 }  // namespace content