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

net/quic/quic_packet_generator_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_generator.h"
 
 #include <string>
 
 #include "net/quic/crypto/crypto_protocol.h"
 #include "net/quic/crypto/null_encrypter.h"
@@ skipping 102 matching lines @@
     frame->type = kFixRate;
     frame->fix_rate.bitrate = QuicBandwidth::FromBytesPerSecond(42);
     return frame;
   }
 
   QuicRstStreamFrame* CreateRstStreamFrame() {
     return new QuicRstStreamFrame(1, QUIC_STREAM_NO_ERROR);
   }
 
   QuicGoAwayFrame* CreateGoAwayFrame() {
-    return new QuicGoAwayFrame(QUIC_NO_ERROR, 1, "");
+    return new QuicGoAwayFrame(QUIC_NO_ERROR, 1, std::string());
   }
 
   void CheckPacketContains(const PacketContents& contents,
                            const SerializedPacket& packet) {
     size_t num_retransmittable_frames = contents.num_connection_close_frames +
         contents.num_goaway_frames + contents.num_rst_stream_frames +
         contents.num_stream_frames;
     size_t num_frames = contents.num_feedback_frames + contents.num_ack_frames +
         num_retransmittable_frames;
 
@@ skipping 371 matching lines @@
 
   // The second should have the remainder of the stream data.
   PacketContents contents2;
   contents2.num_goaway_frames = 1;
   contents2.num_stream_frames = 1;
   CheckPacketContains(contents2, packet2_);
 }
 
 }  // namespace test
 }  // namespace net