Getting rid of DelegatedFrameData

content/browser/renderer_host/render_widget_host_view_aura.cc

Index: content/browser/renderer_host/render_widget_host_view_aura.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
index b5ed661870678988ded999fc0bef7927db7e2181..75b36cd26ea78e6081b24bcb92e05202cea6e255 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -907,8 +907,6 @@ void RenderWidgetHostViewAura::OnSwapCompositorFrame(
   TRACE_EVENT0("content", "RenderWidgetHostViewAura::OnSwapCompositorFrame");
 
   last_scroll_offset_ = frame.metadata.root_scroll_offset;
-  if (!frame.delegated_frame_data)
-    return;
 
   cc::Selection<gfx::SelectionBound> selection = frame.metadata.selection;
   if (IsUseZoomForDSFEnabled()) {
@@ -927,8 +925,9 @@ void RenderWidgetHostViewAura::OnSwapCompositorFrame(
     selection.end.SetEdge(end_edge_top, end_edge_bottom);
   }
 
-  delegated_frame_host_->SwapDelegatedFrame(compositor_frame_sink_id,
-                                            std::move(frame));
+  if (!frame.render_pass_list.empty())

[danakj, 2016/10/28 22:02:54]

{} for multi-line blocks

but before the selection would not be updated if the frame was null/empty, now
it will be. i don't think you want to change behaviour like that in the middle
of this large CL, it increases its riskiness by a lot and having to deal with
reverts of things like this is a huge pain. I think you should early out above
where the old code did.

+    delegated_frame_host_->SwapDelegatedFrame(compositor_frame_sink_id,
+                                              std::move(frame));
   SelectionUpdated(selection.is_editable, selection.is_empty_text_form_control,
                    selection.start, selection.end);
 }