Fix UserImageManagerTest when SplitSettingsSync is enabled

UserImageManagerTest.SaveUserImageFromProfileImage was using
signin::SetRefreshTokenForPrimaryAccount(), which assumes there is a
"sync consented" primary account.

SplitSettingsSync does not set a sync-consented account until the
user goes through the sync consent screen. This test doesn't care
about sync consent, so change it to use SetRefreshTokenForAccount().

This avoids a DCHECK failure when SplitSettingsSync is enabled.

Bug: 1060289
Change-Id: I7c2b262707ea04c7a23f374680bcffa1eb876104
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2218804
Commit-Queue: James Cook <jamescook@chromium.org>
Commit-Queue: Xiyuan Xia <xiyuan@chromium.org>
Auto-Submit: James Cook <jamescook@chromium.org>
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#772461}

chrome/browser/chromeos/login/users/avatar/user_image_manager_browsertest.cc

@@ -62,6 +62,7 @@
 #include "components/prefs/pref_service.h"
 #include "components/prefs/scoped_user_pref_update.h"
 #include "components/signin/public/identity_manager/account_info.h"
+#include "components/signin/public/identity_manager/consent_level.h"
 #include "components/signin/public/identity_manager/identity_test_utils.h"
 #include "components/user_manager/scoped_user_manager.h"
 #include "components/user_manager/user.h"
@@ -258,9 +259,11 @@ class UserImageManagerTestBase : public LoginManagerTest,
 
   void UpdatePrimaryAccountInfo(Profile* profile) {
     auto* identity_manager = IdentityManagerFactory::GetForProfile(profile);
-    signin::SetRefreshTokenForPrimaryAccount(identity_manager,
-                                             kRandomTokenStrForTesting);
-    CoreAccountInfo core_info = identity_manager->GetPrimaryAccountInfo();
+    // Sync consent level doesn't matter here.
+    CoreAccountInfo core_info = identity_manager->GetPrimaryAccountInfo(
+        signin::ConsentLevel::kNotRequired);
+    signin::SetRefreshTokenForAccount(identity_manager, core_info.account_id,
+                                      kRandomTokenStrForTesting);
     AccountInfo account_info;
     account_info.email = core_info.email;
     account_info.gaia = core_info.gaia;