PlzNavigate: Fix dynamic iframe back forward layout test failure

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 6c04e236e37ea42de06c2216980b7ff53d24524b..d7a7b397683aba55aa2b6a0e5d831a13b02a5538 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1087,8 +1087,8 @@ void RenderFrameHostImpl::OnOpenURL(const FrameHostMsg_OpenURL_Params& params) {
     // Try to find a FrameNavigationEntry that matches this frame instead, based
     // on the frame's unique name.  If this can't be found, fall back to the
     // default params using RequestOpenURL below.
-    if (frame_tree_node_->navigator()->NavigateNewChildFrame(this,
-                                                             validated_url))
+    if (frame_tree_node_->navigator()->NavigateNewChildFrame(
+            this, params.user_gesture, validated_url))
       return;
   }