Add a boolean flag to show or hide the device name in About device.

The following boolean flag is added:
config_show_device_name

When set to false, the device name will not be shown in System > About
Device.

Bug: 111653180
Test: Updated robotests
Change-Id: Id9610e2009604c9d9693428adff01adc7d606565

res/values/bools.xml

@@ -32,6 +32,9 @@
          Can be overridden for specific product builds. -->
     <bool name="auto_confirm_bluetooth_activation_dialog">false</bool>
 
+    <!-- Whether the device name is shown in About device or not -->
+    <bool name="config_show_device_name">true</bool>
+
     <!-- Whether to show a preference item for the manual in About phone -->
     <bool name="config_show_manual">false</bool>
     <!-- Whether to show a preference item for regulatory information in About phone -->

src/com/android/settings/deviceinfo/DeviceNamePreferenceController.java

@@ -27,6 +27,7 @@ import android.text.SpannedString;
 
 import com.android.settings.bluetooth.BluetoothLengthDeviceNameFilter;
 import com.android.settings.core.BasePreferenceController;
+import com.android.settings.R;
 import com.android.settings.widget.ValidatedEditTextPreference;
 import com.android.settings.wifi.tether.WifiDeviceNameTextValidator;
 import com.android.settingslib.bluetooth.LocalBluetoothAdapter;
@@ -90,7 +91,9 @@ public class DeviceNamePreferenceController extends BasePreferenceController
 
     @Override
     public int getAvailabilityStatus() {
-        return AVAILABLE;
+        return mContext.getResources().getBoolean(R.bool.config_show_device_name)
+                ? AVAILABLE
+                : UNSUPPORTED_ON_DEVICE;
     }
 
     @Override

tests/robotests/res/values-mcc999/config.xml

@@ -61,6 +61,7 @@
     <bool name="config_show_wifi_ip_address">false</bool>
     <bool name="config_show_wifi_mac_address">false</bool>
     <bool name="config_disable_uninstall_update">true</bool>
+    <bool name="config_show_device_name">false</bool>
 
     <!-- List of a11y components on the device allowed to be enabled by Settings Slices -->
     <string-array name="config_settings_slices_accessibility_components" translatable="false">

tests/robotests/src/com/android/settings/deviceinfo/DeviceNamePreferenceControllerTest.java

@@ -16,6 +16,8 @@
 
 package com.android.settings.deviceinfo;
 
+import static com.android.settings.core.BasePreferenceController.AVAILABLE;
+import static com.android.settings.core.BasePreferenceController.UNSUPPORTED_ON_DEVICE;
 import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
@@ -41,6 +43,7 @@ import org.mockito.Answers;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
 import org.robolectric.shadows.ShadowApplication;
 
 import androidx.preference.PreferenceScreen;
@@ -79,6 +82,17 @@ public class DeviceNamePreferenceControllerTest {
         mController.setLocalBluetoothManager(mBluetoothManager);
     }
 
+    @Test
+    public void getAvailibilityStatus_availableByDefault() {
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE);
+    }
+
+    @Test
+    @Config(qualifiers = "mcc999")
+    public void getAvailabilityStatus_unsupportedWhenSet() {
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(UNSUPPORTED_ON_DEVICE);
+    }
+
     @Test
     public void constructor_defaultDeviceNameIsModelName() {
         assertThat(mController.getSummary()).isEqualTo(Build.MODEL);