Revert of Always update the omnibox URL when cancelling via onbeforeunload

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 9fd9d6d5f46b60225f3abc200e31e5f0cad1cc81..3754bebcc1199260ee1c9cc6f5b904c7936652a3 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1722,6 +1722,10 @@
     frame_tree_node_->render_manager()->OnBeforeUnloadACK(
         unload_ack_is_for_navigation_, proceed, before_unload_end_time);
   }
+
+  // If canceled, notify the delegate to cancel its pending navigation entry.
+  if (!proceed)
+    render_view_host_->GetDelegate()->DidCancelLoading();
 }
 
 bool RenderFrameHostImpl::IsWaitingForUnloadACK() const {