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

chrome/test/chromedriver/chrome/devtools_http_client.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/devtools_http_client.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/json/json_reader.h"
 #include "base/stringprintf.h"
@@ skipping 151 matching lines @@
     scoped_ptr<WebViewImpl> web_view(new WebViewImpl(*it, client.Pass()));
 
     status = web_view->ConnectIfNecessary();
     // Ignore disconnected error, because the debugger might have closed when
     // its container page was closed above.
     if (status.IsError() && status.code() != kDisconnected)
       return status;
 
     scoped_ptr<base::Value> result;
     status = web_view->EvaluateScript(
-        "", "document.querySelector('*[id^=\"close-button-\"').click();",
+        std::string(),
+        "document.querySelector('*[id^=\"close-button-\"').click();",
         &result);
     // Ignore disconnected error, because it may be closed already.
     if (status.IsError() && status.code() != kDisconnected)
       return status;
   }
 
   // Wait until DevTools UI disconnects from the given web view.
   base::Time deadline = base::Time::Now() + base::TimeDelta::FromSeconds(20);
   while (base::Time::Now() < deadline) {
     status = GetWebViewsInfo(&views_info);
@@ skipping 64 matching lines @@
   if (!dict->GetString("Browser", version)) {
     return Status(
         kUnknownError,
         "Chrome version must be >= " + GetMinimumSupportedChromeVersion(),
         Status(kUnknownError, "version info doesn't include string 'Browser'"));
   }
   return Status(kOk);
 }
 
 }  // namespace internal