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

content/browser/frame_host/render_frame_host_impl.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/frame_host/render_frame_host_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 2195 matching lines @@
     if (manager) {
       manager->OnFindInPageResult(
           params.request_id, params.match_index, params.start_id,
           params.start_offset, params.end_id, params.end_offset);
     }
   }
 }
 
 void RenderFrameHostImpl::OnAccessibilityChildFrameHitTestResult(
     const gfx::Point& point,
-    int hit_obj_id) {
+    int hit_obj_id,
+    ui::AXEvent event_to_fire) {
   if (browser_accessibility_manager_) {
-    browser_accessibility_manager_->OnChildFrameHitTestResult(point,
-                                                              hit_obj_id);
+    browser_accessibility_manager_->OnChildFrameHitTestResult(point, hit_obj_id,
+                                                              event_to_fire);
   }
 }
 
 void RenderFrameHostImpl::OnAccessibilitySnapshotResponse(
     int callback_id,
     const AXContentTreeUpdate& snapshot) {
   const auto& it = ax_tree_snapshot_callbacks_.find(callback_id);
   if (it != ax_tree_snapshot_callbacks_.end()) {
     ui::AXTreeUpdate dst_snapshot;
     dst_snapshot.root_id = snapshot.root_id;
@@ skipping 1404 matching lines @@
     service_manager::mojom::InterfaceProviderPtr provider;
     BindInterfaceRegistryForRenderFrameHost(mojo::MakeRequest(&provider), this);
     java_interfaces_.reset(new service_manager::InterfaceProvider);
     java_interfaces_->Bind(std::move(provider));
   }
   return java_interfaces_.get();
 }
 #endif
 
 }  // namespace content