Generalize the HIT_TEST accessibility action so that it can send any event.

content/browser/accessibility/browser_accessibility_manager.h

 // 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.
 
 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 213 matching lines @@
 
   // Called when a new find in page result is received. We hold on to this
   // information and don't activate it until the user requests it.
   void OnFindInPageResult(
       int request_id, int match_index, int start_id, int start_offset,
       int end_id, int end_offset);
 
   // Called in response to a hit test, when the object hit has a child frame
   // (like an iframe element or browser plugin), and we need to do another
   // hit test recursively.
-  void OnChildFrameHitTestResult(const gfx::Point& point, int hit_obj_id);
+  void OnChildFrameHitTestResult(const gfx::Point& point,
+                                 int hit_obj_id,
+                                 ui::AXEvent event_to_fire);
 
   // This is called when the user has committed to a find in page query,
   // e.g. by pressing enter or tapping on the next / previous result buttons.
   // If a match has already been received for this request id,
   // activate the result now by firing an accessibility event. If a match
   // has not been received, we hold onto this request id and update it
   // when OnFindInPageResult is called.
   void ActivateFindInPageResult(int request_id);
 
 #if defined(OS_WIN)
@@ skipping 235 matching lines @@
   // used and it won't be updated from the delegate.
   bool use_custom_device_scale_factor_for_testing_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_H_