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

components/autofill/browser/wallet/wallet_items_unittest.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 "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "components/autofill/browser/wallet/required_action.h"
@@ skipping 400 matching lines @@
 TEST_F(WalletItemsTest, CreateMaskedInstrument) {
   SetUpDictionary(kMaskedInstrument);
   scoped_ptr<Address> address(new Address("country_code",
                                           ASCIIToUTF16("name"),
                                           ASCIIToUTF16("address1"),
                                           ASCIIToUTF16("address2"),
                                           ASCIIToUTF16("city"),
                                           ASCIIToUTF16("state"),
                                           ASCIIToUTF16("postal_code"),
                                           ASCIIToUTF16("phone_number"),
-                                          ""));
+                                          std::string()));
   std::vector<string16> supported_currencies;
   supported_currencies.push_back(ASCIIToUTF16("currency"));
   WalletItems::MaskedInstrument masked_instrument(
       ASCIIToUTF16("descriptive_name"),
       WalletItems::MaskedInstrument::VISA,
       supported_currencies,
       ASCIIToUTF16("last_four_digits"),
       12,
       2012,
       address.Pass(),
@@ skipping 81 matching lines @@
                        "obfuscated_gaia_id");
 
   scoped_ptr<Address> billing_address(new Address("country_code",
                                                   ASCIIToUTF16("name"),
                                                   ASCIIToUTF16("address1"),
                                                   ASCIIToUTF16("address2"),
                                                   ASCIIToUTF16("city"),
                                                   ASCIIToUTF16("state"),
                                                   ASCIIToUTF16("postal_code"),
                                                   ASCIIToUTF16("phone_number"),
-                                                  ""));
+                                                  std::string()));
   std::vector<string16> supported_currencies;
   supported_currencies.push_back(ASCIIToUTF16("currency"));
   scoped_ptr<WalletItems::MaskedInstrument> masked_instrument(
       new WalletItems::MaskedInstrument(ASCIIToUTF16("descriptive_name"),
                                         WalletItems::MaskedInstrument::VISA,
                                         supported_currencies,
                                         ASCIIToUTF16("last_four_digits"),
                                         12,
                                         2012,
                                         billing_address.Pass(),
@@ skipping 23 matching lines @@
                                      ASCIIToUTF16("display_name")));
   expected.AddLegalDocument(legal_document.Pass());
   expected.AddLegalDocument(
       WalletItems::LegalDocument::CreatePrivacyPolicyDocument());
 
   EXPECT_EQ(expected, *WalletItems::CreateWalletItems(*dict));
 }
 
 }  // namespace wallet
 }  // namespace autofill