Fix restoring debug mode in InputTestBase

Change-Id: I71f01b86c0e8b1e56d39d85795dc0a844cc6285f
diff --git a/tests/src/com/android/inputmethod/latin/InputTestsBase.java b/tests/src/com/android/inputmethod/latin/InputTestsBase.java
index 5f6b229..caeff51 100644
--- a/tests/src/com/android/inputmethod/latin/InputTestsBase.java
+++ b/tests/src/com/android/inputmethod/latin/InputTestsBase.java
@@ -95,7 +95,7 @@
         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(mLatinIME);
         final boolean previousDebugSetting = prefs.getBoolean(PREF_DEBUG_MODE, false);
         final SharedPreferences.Editor editor = prefs.edit();
-        editor.putBoolean(PREF_DEBUG_MODE, true);
+        editor.putBoolean(PREF_DEBUG_MODE, mode);
         editor.commit();
         return previousDebugSetting;
     }