Change superclass to InstrumentedFragment.

- for fragments that do not implement the preference screen, change them
to inherit from InstrumentedFragment instead.

Change-Id: I791c2634024bd2c248efea955be5c680180d735c
Fixes: 68277111
Test: make RunSettingsRoboTests
diff --git a/src/com/android/settings/MasterClear.java b/src/com/android/settings/MasterClear.java
index 47aa8a6..4f5c6b9 100644
--- a/src/com/android/settings/MasterClear.java
+++ b/src/com/android/settings/MasterClear.java
@@ -55,7 +55,7 @@
 import android.widget.TextView;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import com.android.settings.core.InstrumentedPreferenceFragment;
+import com.android.settings.core.InstrumentedFragment;
 import com.android.settings.password.ChooseLockSettingsHelper;
 import com.android.settings.password.ConfirmLockPattern;
 import com.android.settingslib.RestrictedLockUtils;
@@ -72,7 +72,7 @@
  *
  * This is the initial screen.
  */
-public class MasterClear extends InstrumentedPreferenceFragment {
+public class MasterClear extends InstrumentedFragment {
     private static final String TAG = "MasterClear";
 
     @VisibleForTesting static final int KEYGUARD_REQUEST = 55;