Respect QuicAllowed policy for new streams

chrome/browser/safe_browsing/safe_browsing_service.h

Index: chrome/browser/safe_browsing/safe_browsing_service.h
diff --git a/chrome/browser/safe_browsing/safe_browsing_service.h b/chrome/browser/safe_browsing/safe_browsing_service.h
index 7e7668e6afa2e9886ecc0e9f1e9ea0adb26b30df..bab582131154cc4f60d5d4cac94cebd0219e46c7 100644
--- a/chrome/browser/safe_browsing/safe_browsing_service.h
+++ b/chrome/browser/safe_browsing/safe_browsing_service.h
@@ -19,6 +19,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "base/sequenced_task_runner_helpers.h"
+#include "chrome/browser/net/net_pref_observer.h"
 #include "chrome/browser/safe_browsing/services_delegate.h"
 #include "components/safe_browsing_db/util.h"
 #include "content/public/browser/browser_thread.h"
@@ -124,6 +125,9 @@ class SafeBrowsingService : public base::RefCountedThreadSafe<
 
   net::URLRequestContextGetter* url_request_context();
 
+  // Called on UI thread thread when net parameters change (e.g. due to policy).
+  void UpdateNetParams(NetPrefObserver::NetParamsChange net_params_change);
+
   const scoped_refptr<SafeBrowsingUIManager>& ui_manager() const;
 
   // This returns either the v3 or the v4 database manager, depending on