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..ff3017966644d3634118175d9c0c43f0c2ed4855 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1087,9 +1087,13 @@ 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,
+            true /* is_renderer_initiated */,
+            params.user_gesture,
+            validated_url)) {
       return;
+    }
   }
 
   TRACE_EVENT1("navigation", "RenderFrameHostImpl::OpenURL", "url",