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

chrome/browser/extensions/updater/extension_updater.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 "chrome/browser/extensions/updater/extension_updater.h"
 
 #include <algorithm>
 #include <set>
 #include <vector>
 
@@ skipping 88 matching lines @@
 ExtensionUpdater::FetchedCRXFile::FetchedCRXFile(
     const std::string& i,
     const base::FilePath& p,
     const GURL& u,
     const std::set<int>& request_ids)
     : extension_id(i),
       path(p),
       download_url(u),
       request_ids(request_ids) {}
 
-ExtensionUpdater::FetchedCRXFile::FetchedCRXFile()
-    : extension_id(""),
-      path(),
-      download_url() {}
+ExtensionUpdater::FetchedCRXFile::FetchedCRXFile() : path(), download_url() {}
 
 ExtensionUpdater::FetchedCRXFile::~FetchedCRXFile() {}
 
 ExtensionUpdater::InProgressCheck::InProgressCheck()
     : install_immediately(false) {}
 
 ExtensionUpdater::InProgressCheck::~InProgressCheck() {}
 
 struct ExtensionUpdater::ThrottleInfo {
   ThrottleInfo()
@@ skipping 567 matching lines @@
   const InProgressCheck& request = requests_in_progress_[request_id];
   if (request.in_progress_ids_.empty()) {
     VLOG(2) << "Finished update check " << request_id;
     if (!request.callback.is_null())
       request.callback.Run();
     requests_in_progress_.erase(request_id);
   }
 }
 
 }  // namespace extensions