Fix accessible touch exploration inside of iframes.

content/test/accessibility_browser_test_utils.h

 // 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.
 
 #ifndef CONTENT_TEST_ACCESSIBILITY_BROWSER_TEST_UTILS_H_
 #define CONTENT_TEST_ACCESSIBILITY_BROWSER_TEST_UTILS_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/accessibility_mode_enums.h"
@@ skipping 29 matching lines @@
   // AccessibilityNotificationWaiter is received. Ignores notifications for
   // "about:blank".
   void WaitForNotification();
 
   // After WaitForNotification has returned, this will retrieve
   // the tree of accessibility nodes received from the renderer process.
   const ui::AXTree& GetAXTree() const;
 
   // After WaitForNotification returns, use this to retrieve the id of the
   // node that was the target of the event.
-  int event_target_id() { return event_target_id_; }
+  int event_target_id() const { return event_target_id_; }
+
+  // After WaitForNotification returns, use this to retrieve the
+  // RenderFrameHostImpl that was the target of the event.
+  RenderFrameHostImpl* event_render_frame_host() const {
+    return event_render_frame_host_;
+  }
 
  private:
   // Callback from RenderViewHostImpl.
-  void OnAccessibilityEvent(ui::AXEvent event, int event_target_id);
+  void OnAccessibilityEvent(content::RenderFrameHostImpl* rfhi,
+                            ui::AXEvent event,
+                            int event_target_id);
 
   // Helper function to determine if the accessibility tree in
   // GetAXTree() is about the page with the url "about:blank".
   bool IsAboutBlank();
 
   RenderFrameHostImpl* frame_host_;
   ui::AXEvent event_to_wait_for_;
   scoped_refptr<MessageLoopRunner> loop_runner_;
   int event_target_id_;
+  RenderFrameHostImpl* event_render_frame_host_;
 
   base::WeakPtrFactory<AccessibilityNotificationWaiter> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityNotificationWaiter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_ACCESSIBILITY_BROWSER_TEST_UTILS_H_