Server push cancellation: add methods in session layer to cancel push given the pushed url. Not in …

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 287 matching lines @@
   bool HasNonMigratableStreams() const;
 
   void HandlePromised(QuicStreamId associated_id,
                       QuicStreamId promised_id,
                       const SpdyHeaderBlock& headers) override;
 
   void DeletePromised(QuicClientPromisedInfo* promised) override;
 
   void OnPushStreamTimedOut(QuicStreamId stream_id) override;
 
+  void CancelPush(const GURL& url) override;

[Ryan Hamilton, 2016/10/27 17:00:25]

nit: please comment, although I imagine this is pretty obvious. (What happens if
this is called for a URL that a push is not pending for)

[Zhongyi Shi, 2016/10/27 17:57:29]

Done.

+
   const LoadTimingInfo::ConnectTiming& GetConnectTiming();
 
  protected:
   // QuicSession methods:
   bool ShouldCreateIncomingDynamicStream(QuicStreamId id) override;
   bool ShouldCreateOutgoingDynamicStream() override;
 
   QuicChromiumClientStream* CreateIncomingDynamicStream(
       QuicStreamId id) override;
 
@@ skipping 77 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_