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

chrome/browser/sync/invalidations/invalidator_storage.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/sync/invalidations/invalidator_storage.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/location.h"
@@ skipping 264 matching lines @@
 
 void InvalidatorStorage::SetBootstrapData(const std::string& data) {
   DCHECK(thread_checker_.CalledOnValidThread());
   std::string base64_data;
   base::Base64Encode(data, &base64_data);
   pref_service_->SetString(prefs::kInvalidatorInvalidationState,
                            base64_data);
 }
 
 std::string InvalidatorStorage::GetBootstrapData() const {
-  std::string base64_data(pref_service_ ?
-      pref_service_->GetString(prefs::kInvalidatorInvalidationState) : "");
+  std::string base64_data(
+      pref_service_
+          ? pref_service_->GetString(prefs::kInvalidatorInvalidationState)
+          : std::string());
   std::string data;
   base::Base64Decode(base64_data, &data);
   return data;
 }
 
 void InvalidatorStorage::Clear() {
   DCHECK(thread_checker_.CalledOnValidThread());
   pref_service_->ClearPref(prefs::kInvalidatorMaxInvalidationVersions);
   pref_service_->ClearPref(prefs::kInvalidatorClientId);
   pref_service_->ClearPref(prefs::kInvalidatorInvalidationState);
@@ skipping 36 matching lines @@
     return;
   it->second.current = ack_handle;
 
   base::ListValue state_map_list;
   SerializeToList(state_map, &state_map_list);
   pref_service_->Set(prefs::kInvalidatorMaxInvalidationVersions,
                      state_map_list);
 }
 
 }  // namespace browser_sync