Clear page display after navigation if no rendered output arrives

content/browser/renderer_host/render_widget_host_view_mac.mm

Index: content/browser/renderer_host/render_widget_host_view_mac.mm
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
index 1062eaf41577c2f222388e4af621eddb2df9a6e3..b3611d817c0d7f070b47214a81eb7e0d268ddb28 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -1564,6 +1564,11 @@ void RenderWidgetHostViewMac::OnSwapCompositorFrame(
   }
 }
 
+void RenderWidgetHostViewMac::ClearCompositorFrame() {
+  if (delegated_frame_host_)
+    delegated_frame_host_->ClearDelegatedFrame();
+}
+
 void RenderWidgetHostViewMac::GetScreenInfo(blink::WebScreenInfo* results) {
   *results = GetWebScreenInfo(GetNativeView());
 }