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 2c6e5d45d84d6b6e5a2c57323a64e1578c03a63f..7de313593d6b83f188f6402f309b481c65ad2be3 100644
--- a/content/browser/frame_host/render_frame_host_manager.h
+++ b/content/browser/frame_host/render_frame_host_manager.h
@@ -438,6 +438,10 @@ 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 OnEnforceStrictMixedContentChecking(bool should_enforce);
+
   // Send updated origin to all frame proxies when the frame navigates to a new
   // origin.
   void OnDidUpdateOrigin(const url::Origin& origin);