Rewrite std::string("") to std::string(), Linux edition.

net/quic/quic_packet_creator_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_packet_creator.h"
 
 #include "base/stl_util.h"
 #include "net/quic/crypto/null_encrypter.h"
 #include "net/quic/crypto/quic_decrypter.h"
 #include "net/quic/crypto/quic_encrypter.h"
@@ skipping 162 matching lines @@
   size_t consumed = creator_.CreateStreamFrame(1u, "test", 10u, true, &frame);
   EXPECT_EQ(4u, consumed);
   CheckStreamFrame(frame, 1u, "test", 10u, true);
   delete frame.stream_frame;
 }
 
 TEST_F(QuicPacketCreatorTest, CreateStreamFrameFinOnly) {
   QuicFrame frame;
   size_t consumed = creator_.CreateStreamFrame(1u, "", 0u, true, &frame);
   EXPECT_EQ(0u, consumed);
-  CheckStreamFrame(frame, 1u, "", 0u, true);
+  CheckStreamFrame(frame, 1u, std::string(), 0u, true);
   delete frame.stream_frame;
 }
 
 TEST_F(QuicPacketCreatorTest, SerializeVersionNegotiationPacket) {
   QuicPacketCreatorPeer::SetIsServer(&creator_, true);
   QuicVersionTagList versions;
   versions.push_back(kQuicVersion1);
   scoped_ptr<QuicEncryptedPacket> encrypted(
       creator_.SerializeVersionNegotiationPacket(versions));
 
@@ skipping 96 matching lines @@
   EXPECT_FALSE(creator_.HasPendingFrames());
   EXPECT_EQ(max_plaintext_size -
             GetPacketHeaderSize(
                 QuicPacketCreatorPeer::SendVersionInPacket(&creator_)),
             creator_.BytesFree());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net