Plumb document's strict mixed content checking for RemoteFrames

content/test/test_render_frame_host.cc

Index: content/test/test_render_frame_host.cc
diff --git a/content/test/test_render_frame_host.cc b/content/test/test_render_frame_host.cc
index 9a36b7cdacc5a5086e7c44cb88aa9d94704e5e55..29b7203688042575b1f070dee2a72389ed198acb 100644
--- a/content/test/test_render_frame_host.cc
+++ b/content/test/test_render_frame_host.cc
@@ -358,6 +358,10 @@ void TestRenderFrameHost::DidChangeOpener(int opener_routing_id) {
   OnDidChangeOpener(opener_routing_id);
 }
 
+void TestRenderFrameHost::DidEnforceStrictMixedContentChecking() {
+  OnEnforceStrictMixedContentChecking();
+}
+
 void TestRenderFrameHost::PrepareForCommit() {
   PrepareForCommitWithServerRedirect(GURL());
 }