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 e45acd1073e2a2cca3802358d54bc2e82cbee45e..30f647c5eca354dda9e7307c7b4049825bf16fd8 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -2213,10 +2213,11 @@ 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);
   }
 }