Fix cross-site subframe navigations that transfer back to original RFH.

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 6ffb6f0671d194bffb0114872423c50466ae4ebf..c25b7bad23c0dd302ef828681508fc54cee9975a 100644
--- a/content/browser/frame_host/render_frame_host_manager.h
+++ b/content/browser/frame_host/render_frame_host_manager.h
@@ -748,7 +748,8 @@ class CONTENT_EXPORT RenderFrameHostManager
   // Returns true if a subframe can navigate cross-process.
   bool CanSubframeSwapProcess(const GURL& dest_url,
                               SiteInstance* source_instance,
-                              SiteInstance* dest_instance);
+                              SiteInstance* dest_instance,
+                              bool for_transfer);
 
   // For use in creating RenderFrameHosts.
   FrameTreeNode* frame_tree_node_;