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..d68e8d518d362891d10920f77bb779b7a198617c 100644
--- a/chrome/browser/profiles/profile_io_data.h
+++ b/chrome/browser/profiles/profile_io_data.h
@@ -44,6 +44,7 @@ class ChromeURLRequestContextGetter;
 class ChromeExpectCTReporter;
 class HostContentSettingsMap;
 class MediaDeviceIDSalt;
+class NetHttpSessionParamsObserver;
 class ProtocolHandlerRegistry;
 class SupervisedUserURLFilter;
 
@@ -264,6 +265,9 @@ class ProfileIOData {
   // Get platform ClientCertStore. May return nullptr.
   std::unique_ptr<net::ClientCertStore> CreateClientCertStore();
 
+  // Called on IO thread thread to disable QUIC.
+  void DisableQuicOnIOThread();
+
  protected:
   // A URLRequestContext for media that owns its HTTP factory, to ensure
   // it is deleted.
@@ -552,6 +556,11 @@ class ProfileIOData {
 
   BooleanPrefMember enable_metrics_;
 
+  // Observes profile's preference for changes to prefs which affect
+  // HttpNetworkSession params.
+  std::unique_ptr<NetHttpSessionParamsObserver>
+      net_http_session_params_observer_;
+
   // Pointed to by NetworkDelegate.
   mutable std::unique_ptr<policy::URLBlacklistManager> url_blacklist_manager_;
   mutable std::unique_ptr<policy::PolicyHeaderIOHelper> policy_header_helper_;