Add gaia_id to ProfileInfoCache.

chrome/browser/profiles/profile_list_desktop.cc

Index: chrome/browser/profiles/profile_list_desktop.cc
diff --git a/chrome/browser/profiles/profile_list_desktop.cc b/chrome/browser/profiles/profile_list_desktop.cc
index e1b863be27f7994c4af9ef1048a49df7d691ec5c..bfa0c4f242b29f5c43186ec64c40793b36275eb1 100644
--- a/chrome/browser/profiles/profile_list_desktop.cc
+++ b/chrome/browser/profiles/profile_list_desktop.cc
@@ -49,14 +49,14 @@ void ProfileListDesktop::RebuildMenu() {
                                                   i,
                                                   icon);
     item->name = profile_info_->GetNameOfProfileAtIndex(i);
-    item->sync_state = profile_info_->GetUserNameOfProfileAtIndex(i);
+    item->username = profile_info_->GetUserNameOfProfileAtIndex(i);
     item->profile_path = profile_info_->GetPathOfProfileAtIndex(i);
     item->legacy_supervised =
         profile_info_->ProfileIsLegacySupervisedAtIndex(i);
     item->child_account = profile_info_->ProfileIsChildAtIndex(i);
-    item->signed_in = !item->sync_state.empty();
+    item->signed_in = profile_info_->ProfileIsAuthenticatedAtIndex(i);
     if (!item->signed_in) {
-      item->sync_state = l10n_util::GetStringUTF16(
+      item->username = l10n_util::GetStringUTF16(
           item->legacy_supervised ? IDS_SUPERVISED_USER_AVATAR_LABEL :
                                     IDS_PROFILES_LOCAL_PROFILE_STATE);
     }