Populate Enterprise Privacy Settings page - batch 1

This CL adds the first batch of items to the Privacy Settings page.
These are all the items that fall into the "What types of
information can your organization see?" category and do not require
deeper Framework changes. Further batches are to come in separate
CLs.

Test: make RunSettingsRoboTests
Bug: 32692748
Change-Id: I460093bc45ed0e5baab2a5cdf9833e654d436cc9

tests/robotests/src/com/android/settings/enterprise/EnterprisePrivacySettingsTest.java

@@ -20,6 +20,8 @@ import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.settings.R;
 import com.android.settings.SettingsRobolectricTestRunner;
 import com.android.settings.TestConfig;
+import com.android.settings.core.PreferenceController;
+
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -28,6 +30,8 @@ import org.robolectric.shadows.ShadowApplication;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import java.util.List;
+
 /**
  * Tests for {@link EnterprisePrivacySettings}.
  */
@@ -66,7 +70,10 @@ public final class EnterprisePrivacySettingsTest {
 
     @Test
     public void getPreferenceControllers() {
-        assertThat(mSettings.getPreferenceControllers(
-                ShadowApplication.getInstance().getApplicationContext())).isNull();
+        final List<PreferenceController> controllers = mSettings.getPreferenceControllers(
+                ShadowApplication.getInstance().getApplicationContext());
+        assertThat(controllers).isNotNull();
+        assertThat(controllers.size()).isEqualTo(1);
+        assertThat(controllers.get(0)).isInstanceOf(InstalledPackagesPreferenceController.class);
     }
 }