Add methods in spdy/quic session to get stream id of pushed stream given the request url

net/quic/chromium/quic_chromium_client_session.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.
 //
 // A client specific QuicSession subclass.  This class owns the underlying
 // QuicConnection and QuicConnectionHelper objects.  The connection stores
 // a non-owning pointer to the helper so this session needs to ensure that
 // the helper outlives the connection.
 
 #ifndef NET_QUIC_QUIC_CHROMIUM_CLIENT_SESSION_H_
@@ skipping 216 matching lines @@
 
   const BoundNetLog& net_log() const { return net_log_; }
 
   base::WeakPtr<QuicChromiumClientSession> GetWeakPtr();
 
   // Returns the number of client hello messages that have been sent on the
   // crypto stream. If the handshake has completed then this is one greater
   // than the number of round-trips needed for the handshake.
   int GetNumSentClientHellos() const;
 
+  // Returns the stream id of the push stream if it is not claimed yet.
+  // Else return 0.

[Ryan Hamilton, 2016/09/22 21:41:33]

nit:  // Returns the stream id of the push stream if it is not claimed yet, or 0
otherwise.

[Zhongyi Shi, 2016/09/22 22:57:06]

Done.

+  QuicStreamId GetStreamIdForPush(const GURL& pushed_url);
+
   // Returns true if |hostname| may be pooled onto this session.  If this
   // is a secure QUIC session, then |hostname| must match the certificate
   // presented during the handshake.
   bool CanPool(const std::string& hostname, PrivacyMode privacy_mode) const;
 
   const QuicServerId& server_id() const { return server_id_; }
 
   // Attempts to migrate session when a write error is encountered.
   void MigrateSessionOnWriteError();
 
@@ skipping 134 matching lines @@
   // the current sockets_.size() == the passed in value.
   bool migration_pending_;  // True while migration is underway.
   base::WeakPtrFactory<QuicChromiumClientSession> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicChromiumClientSession);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CHROMIUM_CLIENT_SESSION_H_