DisplayCompositor should enforce invariant that frame size and device scale factor are fixed

content/browser/renderer_host/delegated_frame_host_client_aura.cc

Index: content/browser/renderer_host/delegated_frame_host_client_aura.cc
diff --git a/content/browser/renderer_host/delegated_frame_host_client_aura.cc b/content/browser/renderer_host/delegated_frame_host_client_aura.cc
index 4622444c3715930b92b28b50d636d104c587d42b..24b24fe4842226434fef414e1cfb59b6a5cbf684 100644
--- a/content/browser/renderer_host/delegated_frame_host_client_aura.cc
+++ b/content/browser/renderer_host/delegated_frame_host_client_aura.cc
@@ -111,4 +111,10 @@ bool DelegatedFrameHostClientAura::IsAutoResizeEnabled() const {
   return render_widget_host_view_->host_->auto_resize_enabled();
 }
 
+void DelegatedFrameHostClientAura::ReceivedBadMessage(
+    bad_message::BadMessageReason reason) {
+  bad_message::ReceivedBadMessage(
+      render_widget_host_view_->GetRenderWidgetHost()->GetProcess(), reason);
+}
+
 }  // namespace content