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

content/browser/renderer_host/render_sandbox_host_linux.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 "content/browser/renderer_host/render_sandbox_host_linux.h"
 
 #include <fcntl.h>
 #include <fontconfig/fontconfig.h>
 #include <stdint.h>
 #include <sys/poll.h>
@@ skipping 260 matching lines @@
     WebKit::WebFontFamily family;
     WebFontInfo::familyForChars(chars.get(),
                                 num_chars,
                                 preferred_locale.c_str(),
                                 &family);
 
     Pickle reply;
     if (family.name.data()) {
       reply.WriteString(family.name.data());
     } else {
-      reply.WriteString("");
+      reply.WriteString(std::string());
     }
     reply.WriteBool(family.isBold);
     reply.WriteBool(family.isItalic);
     SendRendererReply(fds, reply, -1);
   }
 
   void HandleGetStyleForStrike(int fd, const Pickle& pickle,
                                PickleIterator iter,
                                std::vector<int>& fds) {
     std::string family;
@@ skipping 442 matching lines @@
 RenderSandboxHostLinux::~RenderSandboxHostLinux() {
   if (initialized_) {
     if (HANDLE_EINTR(close(renderer_socket_)) < 0)
       PLOG(ERROR) << "close";
     if (HANDLE_EINTR(close(childs_lifeline_fd_)) < 0)
       PLOG(ERROR) << "close";
   }
 }
 
 }  // namespace content