Change SigninClient::CreateGaiaAuthFetcher return type to unique_ptr

components/signin/core/browser/gaia_cookie_manager_service.cc

Index: components/signin/core/browser/gaia_cookie_manager_service.cc
diff --git a/components/signin/core/browser/gaia_cookie_manager_service.cc b/components/signin/core/browser/gaia_cookie_manager_service.cc
index 3076b958aee4a44f6939d1543c7a9d6462276e9a..a3aa65fe8ee2c95e6fe3d8ab3455e108b0d0a89c 100644
--- a/components/signin/core/browser/gaia_cookie_manager_service.cc
+++ b/components/signin/core/browser/gaia_cookie_manager_service.cc
@@ -137,10 +137,8 @@ void GaiaCookieManagerService::ExternalCcResultFetcher::Start() {
 
   CleanupTransientState();
   results_.clear();
-  helper_->gaia_auth_fetcher_.reset(
-      helper_->signin_client_->CreateGaiaAuthFetcher(
-          this, helper_->GetDefaultSourceForRequest(),
-          helper_->request_context()));
+  helper_->gaia_auth_fetcher_ = helper_->signin_client_->CreateGaiaAuthFetcher(
+      this, helper_->GetDefaultSourceForRequest(), helper_->request_context());
   helper_->gaia_auth_fetcher_->StartGetCheckConnectionInfo();
 
   // Some fetches may timeout.  Start a timer to decide when the result fetcher
@@ -758,9 +756,9 @@ void GaiaCookieManagerService::StartFetchingUbertoken() {
 
 void GaiaCookieManagerService::StartFetchingMergeSession() {
   DCHECK(!uber_token_.empty());
-  gaia_auth_fetcher_.reset(signin_client_->CreateGaiaAuthFetcher(
+  gaia_auth_fetcher_ = signin_client_->CreateGaiaAuthFetcher(
       this, GetSourceForRequest(requests_.front()),
-      signin_client_->GetURLRequestContext()));
+      signin_client_->GetURLRequestContext());
 
   gaia_auth_fetcher_->StartMergeSession(uber_token_,
       external_cc_result_fetcher_.GetExternalCcResult());
@@ -769,18 +767,18 @@ void GaiaCookieManagerService::StartFetchingMergeSession() {
 void GaiaCookieManagerService::StartFetchingLogOut() {
   DCHECK(requests_.front().request_type() == GaiaCookieRequestType::LOG_OUT);
   VLOG(1) << "GaiaCookieManagerService::StartFetchingLogOut";
-  gaia_auth_fetcher_.reset(signin_client_->CreateGaiaAuthFetcher(
+  gaia_auth_fetcher_ = signin_client_->CreateGaiaAuthFetcher(
       this, GetSourceForRequest(requests_.front()),
-      signin_client_->GetURLRequestContext()));
+      signin_client_->GetURLRequestContext());
   gaia_auth_fetcher_->StartLogOut();
 }
 
 void GaiaCookieManagerService::StartFetchingListAccounts() {
   VLOG(1) << "GaiaCookieManagerService::ListAccounts";
 
-  gaia_auth_fetcher_.reset(signin_client_->CreateGaiaAuthFetcher(
+  gaia_auth_fetcher_ = signin_client_->CreateGaiaAuthFetcher(
       this, GetSourceForRequest(requests_.front()),
-      signin_client_->GetURLRequestContext()));
+      signin_client_->GetURLRequestContext());
   gaia_auth_fetcher_->StartListAccounts();
 }