Use the new network stats loader to get usage data for all apps.

- change to use the new NetworkStats.Bucket instead of
NetworkStats.Entry when iterating through the detail data.

Bug: 111751694
Test: make RunSettingsRoboTests
Change-Id: I305cc384320e4a72531d80dd9a00a3034ab12837

tests/robotests/src/com/android/settings/datausage/DataUsageListV2Test.java

@@ -26,6 +26,7 @@ import static org.mockito.Mockito.when;
 
 import android.content.Context;
 import android.content.Intent;
+import android.net.ConnectivityManager;
 import android.net.NetworkTemplate;
 import android.os.Bundle;
 import android.provider.Settings;
@@ -97,6 +98,18 @@ public class DataUsageListV2Test {
         assertThat(mDataUsageList.mSubId).isEqualTo(3);
     }
 
+    @Test
+    public void processArgument_shouldGetNetworkTypeFromArgument() {
+        final Bundle args = new Bundle();
+        args.putInt(DataUsageListV2.EXTRA_NETWORK_TYPE, ConnectivityManager.TYPE_WIFI);
+        args.putInt(DataUsageListV2.EXTRA_SUB_ID, 3);
+        mDataUsageList.setArguments(args);
+
+        mDataUsageList.processArgument();
+
+        assertThat(mDataUsageList.mNetworkType).isEqualTo(ConnectivityManager.TYPE_WIFI);
+    }
+
     @Test
     public void processArgument_fromIntent_shouldGetTemplateFromIntent() {
         final FragmentActivity activity = mock(FragmentActivity.class);