Re-land: Finish implementation of automation API hit testing for the desktop

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 <memory>
 #include <vector>
@@ skipping 26 matching lines @@
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents_user_data.h"
 #include "extensions/common/extension_messages.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "ui/accessibility/ax_action_data.h"
 #include "ui/accessibility/ax_host_delegate.h"
 #include "ui/accessibility/ax_tree_id_registry.h"
 
 #if defined(USE_AURA)
 #include "chrome/browser/ui/aura/accessibility/automation_manager_aura.h"
+#include "ui/aura/env.h"
 #endif
 
 namespace extensions {
 class AutomationWebContentsObserver;
 }  // namespace extensions
 
 DEFINE_WEB_CONTENTS_USER_DATA_KEY(extensions::AutomationWebContentsObserver);
 
 namespace extensions {
 
@@ skipping 113 matching lines @@
   void AccessibilityEventReceived(
       const std::vector<content::AXEventNotificationDetails>& details)
       override {
     for (const auto& event : details) {
       ExtensionMsg_AccessibilityEventParams params;
       params.tree_id = event.ax_tree_id;
       params.id = event.id;
       params.event_type = event.event_type;
       params.update = event.update;
       params.event_from = event.event_from;
+#if defined(USE_AURA)
+      params.mouse_location = aura::Env::GetInstance()->last_mouse_location();
+#endif
 
       AutomationEventRouter* router = AutomationEventRouter::GetInstance();
       router->DispatchAccessibilityEvent(params);
     }
   }
 
   void AccessibilityLocationChangesReceived(
       const std::vector<content::AXLocationChangeNotificationDetails>& details)
       override {
     for (const auto& src : details) {
@@ skipping 330 matching lines @@
     int result_acc_obj_id) {
   if (!error.empty()) {
     Respond(Error(error));
     return;
   }
 
   Respond(OneArgument(base::MakeUnique<base::Value>(result_acc_obj_id)));
 }
 
 }  // namespace extensions