Show device name in About Phone summary.

- change from using device model to device name for the top level about
phone preference summary.

Change-Id: I6c1891f3867f55cf1501baf76ea147e2df49111e
Fixes: 119157622
Test: make RunSettingsRoboTests

src/com/android/settings/deviceinfo/aboutphone/TopLevelAboutDevicePreferenceController.java

@@ -19,7 +19,7 @@ package com.android.settings.deviceinfo.aboutphone;
 import android.content.Context;
 
 import com.android.settings.core.BasePreferenceController;
-import com.android.settings.deviceinfo.DeviceModelPreferenceController;
+import com.android.settings.deviceinfo.DeviceNamePreferenceController;
 
 public class TopLevelAboutDevicePreferenceController extends BasePreferenceController {
 
@@ -34,6 +34,8 @@ public class TopLevelAboutDevicePreferenceController extends BasePreferenceContr
 
     @Override
     public CharSequence getSummary() {
-        return DeviceModelPreferenceController.getDeviceModel();
+        final DeviceNamePreferenceController deviceNamePreferenceController =
+            new DeviceNamePreferenceController(mContext);
+        return deviceNamePreferenceController.getSummary();
     }
 }

tests/robotests/src/com/android/settings/deviceinfo/aboutphone/TopLevelAboutDevicePreferenceControllerTest.java

@@ -23,6 +23,7 @@ import static com.google.common.truth.Truth.assertThat;
 
 import android.content.Context;
 import android.os.Build;
+import android.provider.Settings.Global;
 
 import com.android.settings.testutils.SettingsRobolectricTestRunner;
 
@@ -49,7 +50,15 @@ public class TopLevelAboutDevicePreferenceControllerTest {
     }
 
     @Test
-    public void getSummary_shouldReturnDeviceModel() {
+    public void getSummary_deviceNameNotSet_shouldReturnDeviceModel() {
         assertThat(mController.getSummary().toString()).isEqualTo(Build.MODEL);
     }
+
+    @Test
+    public void getSummary_deviceNameSet_shouldReturnDeviceName() {
+        Global.putString(mContext.getContentResolver(), Global.DEVICE_NAME, "Test");
+        assertThat(mController.getSummary().toString()).isEqualTo("Test");
+    }
+
+
 }