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

ipc/ipc_channel_factory.cc

 // Copyright 2013 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 "ipc/ipc_channel_factory.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "ipc/unix_domain_socket_util.h"
 
@@ skipping 46 matching lines @@
     // shut down.
     return;
   }
 
   file_util::ScopedFD scoped_fd(&new_fd);
 
   // Verify that the IPC channel peer is running as the same user.
   if (!IsPeerAuthorized(new_fd))
     return;
 
-  ChannelHandle handle("", base::FileDescriptor(*scoped_fd.release(), true));
+  ChannelHandle handle(std::string(),
+                       base::FileDescriptor(*scoped_fd.release(), true));
   delegate_->OnClientConnected(handle);
 }
 
 void ChannelFactory::OnFileCanWriteWithoutBlocking(int fd) {
   NOTREACHED() << "Listen fd should never be writable.";
 }
 
 void ChannelFactory::Close() {
   if (listen_fd_ < 0)
     return;
   if (HANDLE_EINTR(close(listen_fd_)) < 0)
     PLOG(ERROR) << "close";
   listen_fd_ = -1;
   if (unlink(path_.value().c_str()) < 0)
     PLOG(ERROR) << "unlink";
 
   // Unregister libevent for the listening socket and close it.
   server_listen_connection_watcher_.StopWatchingFileDescriptor();
 }
 
 }  // namespace IPC