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

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 29517e02b3c4f00d3d6e0371e8441f5dd647dd54..6e9fe7ab0e651353c50a455b7d3e95c32a18a3a9 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -2091,10 +2091,11 @@ void RenderFrameHostImpl::OnAccessibilityFindInPageResult(
 
 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);
   }
 }