RequestLogin whenever enabling google task sync

src/googleplay/java/com/todoroo/astrid/gtasks/GtasksPreferences.java

@@ -44,9 +44,6 @@ public class GtasksPreferences extends InjectingPreferenceActivity {
             @Override
             public boolean onPreferenceChange(Preference preference, Object newValue) {
                 if ((boolean) newValue) {
-                    if (gtasksPreferenceService.isLoggedIn()) {
-                        return true;
-                    }
                     if (permissionRequestor.requestAccountPermissions()) {
                         requestLogin();
                     }

src/main/java/com/todoroo/astrid/gtasks/GtasksPreferenceService.java

@@ -68,6 +68,7 @@ public class GtasksPreferenceService {
      */
     public boolean isLoggedIn() {
         return context.getResources().getBoolean(R.bool.sync_enabled) &&
+                preferences.getBoolean(R.string.sync_gtasks, false) &&
                 preferences.getStringValue(PREF_USER_NAME) != null &&
                 permissionChecker.canAccessAccounts();
     }