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

components/autofill/browser/wallet/full_wallet_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/strings/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
@@ skipping 384 matching lines @@
   SetUpDictionary(kFullWalletWithRequiredActions);
 
   std::vector<RequiredAction> required_actions;
   required_actions.push_back(CHOOSE_ANOTHER_INSTRUMENT_OR_ADDRESS);
   required_actions.push_back(UPDATE_EXPIRATION_DATE);
   required_actions.push_back(VERIFY_CVV);
   required_actions.push_back(REQUIRE_PHONE_NUMBER);
 
   FullWallet full_wallet(-1,
                          -1,
-                         "",
-                         "",
+                         std::string(),
+                         std::string(),
                          scoped_ptr<Address>(),
                          scoped_ptr<Address>(),
                          required_actions);
   EXPECT_EQ(full_wallet, *FullWallet::CreateFullWallet(*dict));
 
   ASSERT_FALSE(required_actions.empty());
   required_actions.pop_back();
-  FullWallet different_required_actions(
-      -1,
-      -1,
-      "",
-      "",
-      scoped_ptr<Address>(),
-      scoped_ptr<Address>(),
-      required_actions);
+  FullWallet different_required_actions(-1,
+                                        -1,
+                                        std::string(),
+                                        std::string(),
+                                        scoped_ptr<Address>(),
+                                        scoped_ptr<Address>(),
+                                        required_actions);
   EXPECT_NE(full_wallet, different_required_actions);
 }
 
 TEST_F(FullWalletTest, CreateFullWalletWithInvalidRequiredActions) {
   SetUpDictionary(kFullWalletWithInvalidRequiredActions);
   EXPECT_EQ(NULL, FullWallet::CreateFullWallet(*dict).get());
 }
 
 TEST_F(FullWalletTest, CreateFullWallet) {
   SetUpDictionary(kFullWalletValidResponse);
@@ skipping 39 matching lines @@
   EXPECT_TRUE(base::HexStringToBytes("075DA779F98B", &one_time_pad));
   full_wallet.set_one_time_pad(one_time_pad);
   EXPECT_EQ(ASCIIToUTF16("5285127687171393"),
             full_wallet.GetInfo(CREDIT_CARD_NUMBER));
   EXPECT_EQ(ASCIIToUTF16("339"),
             full_wallet.GetInfo(CREDIT_CARD_VERIFICATION_CODE));
 }
 
 }  // namespace wallet
 }  // namespace autofill