Give Wi-Fi Display settings split actionbar.

Bug: 8156190
Change-Id: I120398e33cfbbce001a528de04d62cc92fe2f9d9

AndroidManifest.xml

@@ -1238,6 +1238,7 @@
         </activity>
 
         <activity android:name="Settings$WifiDisplaySettingsActivity"
+                android:uiOptions="splitActionBarWhenNarrow"
                 android:label="@string/wifi_display_settings_title"
                 android:taskAffinity=""
                 android:excludeFromRecents="true">

src/com/android/settings/Settings.java

@@ -56,6 +56,7 @@ import com.android.settings.accounts.AuthenticatorHelper;
 import com.android.settings.accounts.ManageAccountsSettings;
 import com.android.settings.bluetooth.BluetoothEnabler;
 import com.android.settings.bluetooth.BluetoothSettings;
+import com.android.settings.wfd.WifiDisplaySettings;
 import com.android.settings.wifi.WifiEnabler;
 import com.android.settings.wifi.WifiSettings;
 import com.android.settings.wifi.p2p.WifiP2pSettings;
@@ -381,6 +382,7 @@ public class Settings extends PreferenceActivity
         // uiOptions for fragments also defined as activities in manifest.
         if (WifiSettings.class.getName().equals(fragmentName) ||
                 WifiP2pSettings.class.getName().equals(fragmentName) ||
+                WifiDisplaySettings.class.getName().equals(fragmentName) ||
                 BluetoothSettings.class.getName().equals(fragmentName) ||
                 DreamSettings.class.getName().equals(fragmentName) ||
                 ToggleAccessibilityServicePreferenceFragment.class.getName().equals(fragmentName)) {