QUIC enable server push by default. Guarded by FLAGS_quic_enable_server_push_by_default.

net/quic/core/quic_server_session_base_test.cc

Index: net/quic/core/quic_server_session_base_test.cc
diff --git a/net/quic/core/quic_server_session_base_test.cc b/net/quic/core/quic_server_session_base_test.cc
index d0a6cc50c43266adde9824e3095e057dfc521ad6..f52046b165df0aa2a4ade413cdda7167d7062f31 100644
--- a/net/quic/core/quic_server_session_base_test.cc
+++ b/net/quic/core/quic_server_session_base_test.cc
@@ -185,13 +185,18 @@ INSTANTIATE_TEST_CASE_P(Tests,
                         ::testing::ValuesIn(AllSupportedVersions()));
 
 TEST_P(QuicServerSessionBaseTest, ServerPushDisabledByDefault) {
+  FLAGS_quic_enable_server_push_by_default = true;
   // Without the client explicitly sending kSPSH, server push will be disabled
-  // at the server.
+  // at the server, until version 35 when it is enabled by default.
   EXPECT_FALSE(
       session_->config()->HasReceivedConnectionOptions() &&
       ContainsQuicTag(session_->config()->ReceivedConnectionOptions(), kSPSH));
   session_->OnConfigNegotiated();
-  EXPECT_FALSE(session_->server_push_enabled());
+  if (GetParam() <= QUIC_VERSION_34) {
+    EXPECT_FALSE(session_->server_push_enabled());
+  } else {
+    EXPECT_TRUE(session_->server_push_enabled());
+  }
 }
 
 TEST_P(QuicServerSessionBaseTest, CloseStreamDueToReset) {
@@ -342,7 +347,11 @@ TEST_P(QuicServerSessionBaseTest, MaxAvailableStreams) {
       session_.get(), kLimitingStreamId + 4));
 }
 
+// TODO(ckrasic): remove this when
+// FLAGS_quic_enable_server_push_by_default is
+// deprecated.
 TEST_P(QuicServerSessionBaseTest, EnableServerPushThroughConnectionOption) {
+  FLAGS_quic_enable_server_push_by_default = false;
   // Assume server received server push connection option.
   QuicTagVector copt;
   copt.push_back(kSPSH);