log visibility of views

Depends-On: I5b1dccb5d103ece3112acf38889bae16273b092f
Change-Id: I116aed2bb805f723a5bf2ec9eb94257de0b4a7b5

src/com/android/settings/accessibility/ToggleDaltonizerPreferenceFragment.java

@@ -24,6 +24,7 @@ import android.view.View;
 import android.view.accessibility.AccessibilityManager;
 
 import android.widget.Switch;
+import com.android.internal.logging.MetricsLogger;
 import com.android.settings.R;
 import com.android.settings.widget.SwitchBar;
 
@@ -35,6 +36,11 @@ public class ToggleDaltonizerPreferenceFragment extends ToggleFeaturePreferenceF
 
     private ListPreference mType;
 
+    @Override
+    protected int getMetricsCategory() {
+        return MetricsLogger.ACCESSIBILITY_TOGGLE_DALTONIZER;
+    }
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);