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

chrome/browser/chromeos/login/signin/token_handle_util.cc

Index: chrome/browser/chromeos/login/signin/token_handle_util.cc
diff --git a/chrome/browser/chromeos/login/signin/token_handle_util.cc b/chrome/browser/chromeos/login/signin/token_handle_util.cc
index 1ca6f0455ae195ad7c216bb701478ccc6b6da855..c85b92b6427e505465c054c4469fa08c9939baaa 100644
--- a/chrome/browser/chromeos/login/signin/token_handle_util.cc
+++ b/chrome/browser/chromeos/login/signin/token_handle_util.cc
@@ -60,7 +60,7 @@ void TokenHandleUtil::DeleteHandle(const AccountId& account_id) {
   const base::DictionaryValue* dict = nullptr;
   if (!user_manager::known_user::FindPrefs(account_id, &dict))
     return;
-  scoped_ptr<base::DictionaryValue> dict_copy(dict->DeepCopy());
+  std::unique_ptr<base::DictionaryValue> dict_copy(dict->DeepCopy());
   dict_copy->Remove(kTokenHandlePref, nullptr);
   dict_copy->Remove(kTokenHandleStatusPref, nullptr);
   user_manager::known_user::UpdatePrefs(account_id, *dict_copy.get(),
@@ -92,7 +92,7 @@ void TokenHandleUtil::CheckToken(const AccountId& account_id,
   }
 
   validation_delegates_.set(
-      token, scoped_ptr<TokenDelegate>(new TokenDelegate(
+      token, std::unique_ptr<TokenDelegate>(new TokenDelegate(
                  weak_factory_.GetWeakPtr(), account_id, token, callback)));
   gaia_client_->GetTokenHandleInfo(token, kMaxRetries,
                                    validation_delegates_.get(token));
@@ -144,7 +144,7 @@ void TokenHandleUtil::TokenDelegate::OnNetworkError(int response_code) {
 }
 
 void TokenHandleUtil::TokenDelegate::OnGetTokenInfoResponse(
-    scoped_ptr<base::DictionaryValue> token_info) {
+    std::unique_ptr<base::DictionaryValue> token_info) {
   TokenHandleStatus outcome = UNKNOWN;
   if (!token_info->HasKey("error")) {
     int expires_in = 0;