Respect QuicAllowed policy for new streams

chrome/browser/profiles/profile_io_data.h

Index: chrome/browser/profiles/profile_io_data.h
diff --git a/chrome/browser/profiles/profile_io_data.h b/chrome/browser/profiles/profile_io_data.h
index 4a5666273294a96ae2a26c5c3f7b5c18b072d98b..dce5c34a694f3f5a9a0bcf407e6c933840ce3e6a 100644
--- a/chrome/browser/profiles/profile_io_data.h
+++ b/chrome/browser/profiles/profile_io_data.h
@@ -264,6 +264,10 @@ class ProfileIOData {
   // Get platform ClientCertStore. May return nullptr.
   std::unique_ptr<net::ClientCertStore> CreateClientCertStore();
 
+  // Called on IO thread thread when net parameters change (e.g. due to policy).
+  void UpdateNetParamsOnIOThread(
+      net::HttpNetworkSession::ParamsUpdate params_update);
+
  protected:
   // A URLRequestContext for media that owns its HTTP factory, to ensure
   // it is deleted.