Server push cancellation: add PushPromiseHelper which reflects information on the push promise.

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 20 matching lines @@
 #include "net/quic/chromium/quic_chromium_client_stream.h"
 #include "net/quic/chromium/quic_chromium_packet_reader.h"
 #include "net/quic/chromium/quic_chromium_packet_writer.h"
 #include "net/quic/chromium/quic_connection_logger.h"
 #include "net/quic/core/quic_client_session_base.h"
 #include "net/quic/core/quic_crypto_client_stream.h"
 #include "net/quic/core/quic_protocol.h"
 #include "net/quic/core/quic_server_id.h"
 #include "net/quic/core/quic_time.h"
 #include "net/socket/socket_performance_watcher.h"
+#include "net/spdy/server_push_delegate.h"
 
 namespace net {
 
 class CertVerifyResult;
 class DatagramClientSocket;
 class NetLog;
 class QuicCryptoClientStreamFactory;
 class QuicServerInfo;
 class QuicStreamFactory;
 class SSLInfo;
@@ skipping 240 matching lines @@
   // Returns current default socket. This is the socket over which all
   // QUIC packets are sent. This default socket can change, so do not store the
   // returned socket.
   const DatagramClientSocket* GetDefaultSocket() const;
 
   bool IsAuthorized(const std::string& hostname) override;
 
   // Returns true if session has one ore more streams marked as non-migratable.
   bool HasNonMigratableStreams() const;
 
-  void HandlePromised(QuicStreamId associated_id,
+  bool HandlePromised(QuicStreamId associated_id,
                       QuicStreamId promised_id,
                       const SpdyHeaderBlock& headers) override;
 
   void DeletePromised(QuicClientPromisedInfo* promised) override;
 
   void OnPushStreamTimedOut(QuicStreamId stream_id) override;
 
+  void set_push_delegte(ServerPushDelegate* push_delegate) {
+    push_delegate_ = push_delegate;
+  }
+
   // Cancels the push if the push stream for |url| has not been claimed and is
   // still active. Otherwise, no-op.
   void CancelPush(const GURL& url);
 
   const LoadTimingInfo::ConnectTiming& GetConnectTiming();
 
   QuicVersion GetQuicVersion() const;
 
  protected:
   // QuicSession methods:
@@ skipping 62 matching lines @@
   NetLogWithSource net_log_;
   std::vector<std::unique_ptr<QuicChromiumPacketReader>> packet_readers_;
   LoadTimingInfo::ConnectTiming connect_timing_;
   std::unique_ptr<QuicConnectionLogger> logger_;
   // True when the session is going away, and streams may no longer be created
   // on this session. Existing stream will continue to be processed.
   bool going_away_;
   // True when the session receives a go away from server due to port migration.
   bool port_migration_detected_;
   TokenBindingSignatureMap token_binding_signatures_;
+  // Not owned. |push_delegate_| outlives the session and handles server pushes
+  // received by session.
+  ServerPushDelegate* push_delegate_;
   // UMA histogram counters for streams pushed to this session.
   int streams_pushed_count_;
   int streams_pushed_and_claimed_count_;
   uint64_t bytes_pushed_count_;
   uint64_t bytes_pushed_and_unclaimed_count_;
   // Stores packet that witnesses socket write error. This packet is
   // written to a new socket after migration completes.
   scoped_refptr<StringIOBuffer> packet_;
   // TODO(jri): Replace use of migration_pending_ sockets_.size().
   // When a task is posted for MigrateSessionOnError, pass in
   // sockets_.size(). Then in MigrateSessionOnError, check to see if
   // 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_