placeholders for FrameRectMsg from Layout to Constellation

src/components/main/constellation.rs

@@ -359,6 +359,11 @@ impl Constellation {
                 self.pipelines.insert(pipeline.id, pipeline);
             }
 
+/* 
+            FrameRectMsg(pipeline_id, subpage_id, rect, rect_type) => {
+            }
+
+*/
             LoadIframeUrlMsg(url, source_pipeline_id, subpage_id, size_future) => {
                 // A message from the script associated with pipeline_id that it has
                 // parsed an iframe during html parsing. This iframe will result in a

src/components/msg/constellation_msg.rs

@@ -29,6 +29,7 @@ impl ConstellationChan {
 pub enum Msg {
     ExitMsg(Chan<()>),
     InitLoadUrlMsg(Url),
+    //FrameRectMsg(PipelineId, SubpageId, Rect<?>),
     LoadUrlMsg(PipelineId, Url, Future<Size2D<uint>>),
     LoadIframeUrlMsg(Url, PipelineId, SubpageId, Future<Size2D<uint>>),
     NavigateMsg(NavigationDirection),