Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/login/supervised/supervised_user_login_flow.cc

Index: chrome/browser/chromeos/login/supervised/supervised_user_login_flow.cc
diff --git a/chrome/browser/chromeos/login/supervised/supervised_user_login_flow.cc b/chrome/browser/chromeos/login/supervised/supervised_user_login_flow.cc
index 3e2ffc09dced8f7e7453a30a313fc0fd7ee20c22..9986ed35ebc33ec68eb4c53c96afb4c7df3d997b 100644
--- a/chrome/browser/chromeos/login/supervised/supervised_user_login_flow.cc
+++ b/chrome/browser/chromeos/login/supervised/supervised_user_login_flow.cc
@@ -137,7 +137,7 @@ void SupervisedUserLoginFlow::OnPasswordChangeDataLoaded(
     return;
   }
   base::Base64Decode(base64_signature, &signature);
-  scoped_ptr<base::DictionaryValue> data_copy(password_data->DeepCopy());
+  std::unique_ptr<base::DictionaryValue> data_copy(password_data->DeepCopy());
   cryptohome::KeyDefinition key(password,
                                 kCryptohomeSupervisedUserKeyLabel,
                                 kCryptohomeSupervisedUserKeyPrivileges);
@@ -184,7 +184,7 @@ void SupervisedUserLoginFlow::OnPasswordChangeDataLoaded(
 }
 
 void SupervisedUserLoginFlow::OnNewKeyAdded(
-    scoped_ptr<base::DictionaryValue> password_data) {
+    std::unique_ptr<base::DictionaryValue> password_data) {
   VLOG(1) << "New key added";
   SupervisedUserAuthentication* auth =
       ChromeUserManager::Get()->GetSupervisedUserManager()->GetAuthentication();
@@ -228,7 +228,7 @@ void SupervisedUserLoginFlow::OnAuthenticationFailure(
 }
 
 void SupervisedUserLoginFlow::OnPasswordUpdated(
-    scoped_ptr<base::DictionaryValue> password_data) {
+    std::unique_ptr<base::DictionaryValue> password_data) {
   VLOG(1) << "Updated password for supervised user";
 
   SupervisedUserAuthentication* auth =