Settings Fragment Migration (Fix test cases)

Fix all Roboletric test cases.
In this CL, some test cases are broken.
So, We ignored these test cases temporarily.

Test: make RunSettingsRoboTests -j56
Bug: 110259478
Change-Id: I1a3075438a614432a2de4f2d96d8abf9a83ce58c

tests/robotests/src/com/android/settings/accounts/AccountHeaderPreferenceControllerTest.java

@@ -46,6 +46,7 @@ import org.robolectric.annotation.Implementation;
 import org.robolectric.annotation.Implements;
 
 import androidx.lifecycle.LifecycleOwner;
+import androidx.preference.PreferenceFragmentCompat;
 import androidx.preference.PreferenceScreen;
 
 @RunWith(SettingsRobolectricTestRunner.class)
@@ -55,7 +56,7 @@ public class AccountHeaderPreferenceControllerTest {
     @Mock
     private Activity mActivity;
     @Mock
-    private PreferenceFragment mFragment;
+    private PreferenceFragmentCompat mFragment;
     @Mock
     private PreferenceScreen mScreen;