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

chrome/browser/net/pref_proxy_config_tracker_impl_unittest.cc

 // Copyright (c) 2011 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/net/pref_proxy_config_tracker_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/message_loop.h"
 #include "base/prefs/pref_registry_simple.h"
@@ skipping 117 matching lines @@
 };
 
 TEST_F(PrefProxyConfigTrackerImplTest, BaseConfiguration) {
   net::ProxyConfig actual_config;
   EXPECT_EQ(net::ProxyConfigService::CONFIG_VALID,
             proxy_config_service_->GetLatestProxyConfig(&actual_config));
   EXPECT_EQ(GURL(kFixedPacUrl), actual_config.pac_url());
 }
 
 TEST_F(PrefProxyConfigTrackerImplTest, DynamicPrefOverrides) {
-  pref_service_->SetManagedPref(
-      prefs::kProxy,
-      ProxyConfigDictionary::CreateFixedServers("http://example.com:3128", ""));
+  pref_service_->SetManagedPref(prefs::kProxy,
+                                ProxyConfigDictionary::CreateFixedServers(
+                                    "http://example.com:3128", std::string()));
   loop_.RunUntilIdle();
 
   net::ProxyConfig actual_config;
   EXPECT_EQ(net::ProxyConfigService::CONFIG_VALID,
             proxy_config_service_->GetLatestProxyConfig(&actual_config));
   EXPECT_FALSE(actual_config.auto_detect());
   EXPECT_EQ(net::ProxyConfig::ProxyRules::TYPE_SINGLE_PROXY,
             actual_config.proxy_rules().type);
   EXPECT_EQ(actual_config.proxy_rules().single_proxies.Get(),
             net::ProxyServer::FromURI("http://example.com:3128",
@@ skipping 326 matching lines @@
     net::ProxyRulesExpectation::Empty(),
   },
 };
 
 INSTANTIATE_TEST_CASE_P(
     PrefProxyConfigTrackerImplCommandLineTestInstance,
     PrefProxyConfigTrackerImplCommandLineTest,
     testing::ValuesIn(kCommandLineTestParams));
 
 }  // namespace