QUIC enable server push by default. Guarded by FLAGS_quic_enable_server_push_by_default.

net/quic/core/quic_server_session_base.h

Index: net/quic/core/quic_server_session_base.h
diff --git a/net/quic/core/quic_server_session_base.h b/net/quic/core/quic_server_session_base.h
index 8a09fdeb91c78672b1ee5278b9cfd950c3e19fa8..a7bf3749a8070989289acf98f8ade0f5a8f08397 100644
--- a/net/quic/core/quic_server_session_base.h
+++ b/net/quic/core/quic_server_session_base.h
@@ -95,8 +95,6 @@ class NET_EXPORT_PRIVATE QuicServerSessionBase : public QuicSpdySession {
     serving_region_ = serving_region;
   }
 
-  bool server_push_enabled() const { return server_push_enabled_; }
-
  protected:
   // QuicSession methods(override them with return type of QuicSpdyStream*):
   QuicCryptoServerStreamBase* GetCryptoStream() override;
@@ -118,8 +116,6 @@ class NET_EXPORT_PRIVATE QuicServerSessionBase : public QuicSpdySession {
 
   const QuicCryptoServerConfig* crypto_config() { return crypto_config_; }
 
-  void set_server_push_enabled(bool enable) { server_push_enabled_ = enable; }
-
   Visitor* visitor() { return visitor_; }
 
   QuicCryptoServerStream::Helper* stream_helper() { return helper_; }
@@ -163,10 +159,6 @@ class NET_EXPORT_PRIVATE QuicServerSessionBase : public QuicSpdySession {
   int32_t BandwidthToCachedParameterBytesPerSecond(
       const QuicBandwidth& bandwidth);
 
-  // Set during handshake. If true, resources in x-associated-content and link
-  // headers will be pushed. see: go/gfe_server_push.
-  bool server_push_enabled_;
-
   DISALLOW_COPY_AND_ASSIGN(QuicServerSessionBase);
 };