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

chrome/test/chromedriver/chrome/chrome_desktop_impl.cc

 // Copyright (c) 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 "chrome/test/chromedriver/chrome/chrome_desktop_impl.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/process_util.h"
 #include "base/sys_info.h"
@@ skipping 49 matching lines @@
     if (id.empty())
       return Status(kUnknownError, "automation extension cannot be found");
 
     scoped_ptr<WebView> web_view(new WebViewImpl(
         id, devtools_http_client_->CreateClient(id)));
     Status status = web_view->ConnectIfNecessary();
     if (status.IsError())
       return status;
 
     // Wait for the extension background page to load.
-    status = web_view->WaitForPendingNavigations("");
+    status = web_view->WaitForPendingNavigations(std::string());
     if (status.IsError())
       return status;
 
     automation_extension_.reset(new AutomationExtension(web_view.Pass()));
   }
   *extension = automation_extension_.get();
   return Status(kOk);
 }
 
 std::string ChromeDesktopImpl::GetOperatingSystemName() {
   return base::SysInfo::OperatingSystemName();
 }
 
 Status ChromeDesktopImpl::Quit() {
   if (!base::KillProcess(process_, 0, true)) {
     int exit_code;
     if (base::GetTerminationStatus(process_, &exit_code) ==
         base::TERMINATION_STATUS_STILL_RUNNING)
       return Status(kUnknownError, "cannot kill Chrome");
   }
   return Status(kOk);
 }