Plumb document's strict mixed content checking for RemoteFrames

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index a4b150b37b19e67c1df9575847cfb7b965547353..0783aeb36914734ae18ff57f16f33e3f22a6ac2d 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2483,6 +2483,10 @@ void RenderFrameImpl::didChangeName(blink::WebLocalFrame* frame,
   }
 }
 
+void RenderFrameImpl::didEnforceStrictMixedContentChecking() {
+  Send(new FrameHostMsg_DidEnforceStrictMixedContentChecking(routing_id_));
+}
+
 void RenderFrameImpl::didChangeSandboxFlags(blink::WebFrame* child_frame,
                                             blink::WebSandboxFlags flags) {
   Send(new FrameHostMsg_DidChangeSandboxFlags(