Fix accessible touch exploration inside of iframes.

content/browser/frame_host/render_frame_host_impl.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_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 433 matching lines @@
   void RequestAXTreeSnapshot(AXTreeSnapshotCallback callback);
 
   // Resets the accessibility serializer in the renderer.
   void AccessibilityReset();
 
   // Turn on accessibility testing. The given callback will be run
   // every time an accessibility notification is received from the
   // renderer process, and the accessibility tree it sent can be
   // retrieved using GetAXTreeForTesting().
   void SetAccessibilityCallbackForTesting(
-      const base::Callback<void(ui::AXEvent, int)>& callback);
+      const base::Callback<void(RenderFrameHostImpl*, ui::AXEvent, int)>&
+          callback);
 
   // Called when the metadata about the accessibility tree for this frame
   // changes due to a browser-side change, as opposed to due to an IPC from
   // a renderer.
   void UpdateAXTreeData();
 
   // Set the AX tree ID of the embedder RFHI, if this is a browser plugin guest.
   void set_browser_plugin_embedder_ax_tree_id(
       AXTreeIDRegistry::AXTreeID ax_tree_id) {
     browser_plugin_embedder_ax_tree_id_ = ax_tree_id;
@@ skipping 182 matching lines @@
                          const BeginNavigationParams& begin_params,
                          scoped_refptr<ResourceRequestBody> body);
   void OnDispatchLoad();
   void OnAccessibilityEvents(
       const std::vector<AccessibilityHostMsg_EventParams>& params,
       int reset_token);
   void OnAccessibilityLocationChanges(
       const std::vector<AccessibilityHostMsg_LocationChangeParams>& params);
   void OnAccessibilityFindInPageResult(
       const AccessibilityHostMsg_FindInPageResultParams& params);
+  void OnAccessibilityChildFrameHitTestResult(const gfx::Point& point,
+                                              int hit_obj_id);
   void OnAccessibilitySnapshotResponse(
       int callback_id,
       const AXContentTreeUpdate& snapshot);
   void OnToggleFullscreen(bool enter_fullscreen);
   void OnDidStartLoading(bool to_different_document);
   void OnDidStopLoading();
   void OnDidChangeLoadProgress(double load_progress);
   void OnSerializeAsMHTMLResponse(
       int job_id,
       bool success,
@@ skipping 234 matching lines @@
   AXContentTreeData ax_content_tree_data_;
 
   // The AX tree ID of the embedder, if this is a browser plugin guest.
   AXTreeIDRegistry::AXTreeID browser_plugin_embedder_ax_tree_id_;
 
   // The mapping from callback id to corresponding callback for pending
   // accessibility tree snapshot calls created by RequestAXTreeSnapshot.
   std::map<int, AXTreeSnapshotCallback> ax_tree_snapshot_callbacks_;
 
   // Callback when an event is received, for testing.
-  base::Callback<void(ui::AXEvent, int)> accessibility_testing_callback_;
+  base::Callback<void(RenderFrameHostImpl*, ui::AXEvent, int)>
+      accessibility_testing_callback_;
   // The most recently received accessibility tree - for testing only.
   scoped_ptr<ui::AXTree> ax_tree_for_testing_;
   // Flag to not create a BrowserAccessibilityManager, for testing. If one
   // already exists it will still be used.
   bool no_create_browser_accessibility_manager_for_testing_;
 
   // PlzNavigate: Owns the stream used in navigations to store the body of the
   // response once it has started.
   scoped_ptr<StreamHandle> stream_handle_;
 
@@ skipping 42 matching lines @@
 
   // NOTE: This must be the last member.
   base::WeakPtrFactory<RenderFrameHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_