Notify parent frame renderer when OOP child frame renderer crashes

content/browser/frame_host/cross_process_frame_connector.h

Index: content/browser/frame_host/cross_process_frame_connector.h
diff --git a/content/browser/frame_host/cross_process_frame_connector.h b/content/browser/frame_host/cross_process_frame_connector.h
index 1dfb5d1aeadb7836534664263945df908b776f5e..4ab8e0244837e647ad871b0f50c826f2f97912d0 100644
--- a/content/browser/frame_host/cross_process_frame_connector.h
+++ b/content/browser/frame_host/cross_process_frame_connector.h
@@ -70,6 +70,8 @@ class CrossProcessFrameConnector {
   // above.
   void set_view(RenderWidgetHostViewChildFrame* view);
 
+  void RenderProcessGone();
+
   // 'Platform' functionality exposed to RenderWidgetHostViewChildFrame.
   // These methods can forward messages to the child frame proxy in the parent
   // frame's renderer or attempt to handle them within the browser process.