Remove FLAGS_quic_allow_silent_close.

net/quic/quic_connection_test.cc

 // 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.
 
 #include "net/quic/quic_connection.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/stl_util.h"
 #include "net/base/net_errors.h"
@@ skipping 3138 matching lines @@
   clock_.AdvanceTime(five_ms);
   EXPECT_EQ(default_timeout.Add(five_ms), clock_.ApproximateNow());
   connection_.GetTimeoutAlarm()->Fire();
   EXPECT_FALSE(connection_.GetTimeoutAlarm()->IsSet());
   EXPECT_FALSE(connection_.connected());
 }
 
 TEST_P(QuicConnectionTest, TimeoutAfterSendSilentClose) {
   // Same test as above, but complete a handshake which enables silent close,
   // causing no connection close packet to be sent.
-  ValueRestore<bool> old_flag(&FLAGS_quic_allow_silent_close, true);
   EXPECT_TRUE(connection_.connected());
   EXPECT_CALL(*send_algorithm_, SetFromConfig(_, _, _));
   QuicConfig config;
 
   // Create a handshake message that also enables silent close.
   CryptoHandshakeMessage msg;
   string error_details;
   QuicConfig client_config;
   client_config.SetInitialStreamFlowControlWindowToSend(
       kInitialStreamFlowControlWindowForTest);
@@ skipping 1251 matching lines @@
   // Regression test for b/18594622
   scoped_refptr<MockAckNotifierDelegate> delegate(new MockAckNotifierDelegate);
   EXPECT_DFATAL(
       connection_.SendStreamDataWithString(3, "", 0, !kFin, delegate.get()),
       "Attempt to send empty stream frame");
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net