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

Index: net/quic/chromium/quic_chromium_client_session.h
diff --git a/net/quic/chromium/quic_chromium_client_session.h b/net/quic/chromium/quic_chromium_client_session.h
index 2b8954d17fdb8e03132c79acc55a8e189d02af2b..0045912eae44358ad6d15410824678f7b164dcf7 100644
--- a/net/quic/chromium/quic_chromium_client_session.h
+++ b/net/quic/chromium/quic_chromium_client_session.h
@@ -305,6 +305,10 @@ class NET_EXPORT_PRIVATE QuicChromiumClientSession
 
   void OnPushStreamTimedOut(QuicStreamId stream_id) override;
 
+  // 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();
 
  protected: