Plumb document's strict mixed content checking for RemoteFrames

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index 838248494e2e0e6ebf22a66fb6f88d10e38fca60..2e03e336703c6583aedaac053c4c4473d8ccf061 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -553,6 +553,7 @@ class CONTENT_EXPORT RenderFrameHostImpl
   void OnDidAccessInitialDocument();
   void OnDidChangeOpener(int32 opener_routing_id);
   void OnDidChangeName(const std::string& name);
+  void OnDidChangeShouldEnforceStrictMixedContentChecking(bool should_enforce);
   void OnDidAssignPageId(int32 page_id);
   void OnDidChangeSandboxFlags(int32 frame_routing_id,
                                blink::WebSandboxFlags flags);