Remove using namespace in net/quic/quic_stream_sequencer.h

net/quic/quic_reliable_client_stream_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_reliable_client_stream.h"
 
+#include <string>
+
 #include "net/base/net_errors.h"
 #include "net/base/test_completion_callback.h"
 #include "net/quic/quic_client_session.h"
 #include "net/quic/quic_utils.h"
 #include "net/quic/spdy_utils.h"
 #include "net/quic/test_tools/quic_test_utils.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
+using std::string;
 using testing::AnyNumber;
 using testing::Return;
 using testing::StrEq;
 using testing::_;
 
 namespace net {
 namespace test {
 namespace {
 
 const QuicConnectionId kStreamId = 3;
@@ skipping 139 matching lines @@
   EXPECT_CALL(session_, WritevData(stream_->id(),  _, _, _, _, _)).WillOnce(
       Return(QuicConsumedData(kDataLen, true)));
   stream_->OnCanWrite();
   ASSERT_TRUE(callback.have_result());
   EXPECT_EQ(OK, callback.WaitForResult());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net