Pass accessible location change messages to the automation API.

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 317829c0f9c1bafa77d962e25ef1f2102389e663..ce46a716faaa467ec5ea42b44a2f484e74839623 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1892,7 +1892,19 @@ void RenderFrameHostImpl::OnAccessibilityLocationChanges(
       if (manager)
         manager->OnLocationChanges(params);
     }
-    // TODO(aboxhall): send location change events to web contents observers too
+
+    // Send the updates to the automation extension API.
+    std::vector<AXLocationChangeNotificationDetails> details;
+    details.reserve(params.size());
+    for (size_t i = 0; i < params.size(); ++i) {
+      const AccessibilityHostMsg_LocationChangeParams& param = params[i];
+      AXLocationChangeNotificationDetails detail;
+      detail.id = param.id;
+      detail.ax_tree_id = GetAXTreeID();
+      detail.new_location = param.new_location;
+      details.push_back(detail);
+    }
+    delegate_->AccessibilityLocationChangesReceived(details);
   }
 }