Plumb document's strict mixed content checking for RemoteFrames

content/browser/frame_host/render_frame_host_manager.h

Index: content/browser/frame_host/render_frame_host_manager.h
diff --git a/content/browser/frame_host/render_frame_host_manager.h b/content/browser/frame_host/render_frame_host_manager.h
index ae642472ccbdc9b117053853b6e55524c1f70916..0862bf803be348a5752ad0f8f80cbd030e6d15df 100644
--- a/content/browser/frame_host/render_frame_host_manager.h
+++ b/content/browser/frame_host/render_frame_host_manager.h
@@ -459,6 +459,10 @@ class CONTENT_EXPORT RenderFrameHostManager {
   // window.name property.
   void OnDidUpdateName(const std::string& name);
 
+  // Sends updated enforcement of strict mixed content checking to all
+  // frame proxies when the frame changes its setting.
+  void OnDidUpdateShouldEnforceStrictMixedContentChecking(bool should_enforce);
+
   // Send updated origin to all frame proxies when the frame navigates to a new
   // origin.
   void OnDidUpdateOrigin(const url::Origin& origin);