Add a whitelist for QUIC hosts.

net/http/http_stream_factory_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 100 matching lines @@
 
   // Invoked when an orphaned Job finishes.
   void OnOrphanedJobComplete(const Job* job);
 
   // Invoked when the Job finishes preconnecting sockets.
   void OnPreconnectsComplete(const Job* job);
 
   // Called when the Preconnect completes. Used for testing.
   virtual void OnPreconnectsCompleteInternal() {}
 
+  // Returns true if QUIC is whitelisted for |host|.

[Ryan Sleevi, 2016/01/12 01:28:06]

comment nit: Note about format of host (I presume it's already canonicalized in
some form? Should mention that)

[Ryan Hamilton, 2016/01/12 05:42:37]

Done.

+  bool IsQuicWhitelistedForHost(const std::string& host);
+
   HttpNetworkSession* const session_;
 
   // All Requests are handed out to clients. By the time HttpStreamFactoryImpl
   // is destroyed, all Requests should be deleted (which should remove them from
   // |request_map_|. The Requests will delete the corresponding job.
   std::map<const Job*, Request*> request_map_;
 
   SpdySessionRequestMap spdy_session_request_map_;
 
   // These jobs correspond to jobs orphaned by Requests and now owned by
   // HttpStreamFactoryImpl. Since they are no longer tied to Requests, they will
   // not be canceled when Requests are canceled. Therefore, in
   // ~HttpStreamFactoryImpl, it is possible for some jobs to still exist in this
   // set. Leftover jobs will be deleted when the factory is destroyed.
   std::set<const Job*> orphaned_job_set_;
 
   // These jobs correspond to preconnect requests and have no associated Request
   // object. They're owned by HttpStreamFactoryImpl. Leftover jobs will be
   // deleted when the factory is destroyed.
   std::set<const Job*> preconnect_job_set_;
 
   const bool for_websockets_;
   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactoryImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_H_