Enable Ethernet tab in data usage

mStateSession is not initialized at the time hasEthernet is called to
set mShowEthernet, so Ethernet tab is not shown at the startup.
In this case, if the device doesn't support mobile network, user cannot
even select it from the context menu.

Bug: 8365419
Change-Id: I441971f18346c34a3adf3f18d9355075d9dce3f0

src/com/android/settings/DataUsageSummary.java

@@ -277,13 +277,19 @@ public class DataUsageSummary extends Fragment {
         mPolicyEditor = new NetworkPolicyEditor(mPolicyManager);
         mPolicyEditor.read();
 
+        try {
+            mStatsSession = mStatsService.openSession();
+        } catch (RemoteException e) {
+            throw new RuntimeException(e);
+        }
+
         mShowWifi = mPrefs.getBoolean(PREF_SHOW_WIFI, false);
         mShowEthernet = mPrefs.getBoolean(PREF_SHOW_ETHERNET, false);
 
         // override preferences when no mobile radio
         if (!hasReadyMobileRadio(context)) {
-            mShowWifi = hasWifiRadio(context);
-            mShowEthernet = hasEthernet(context);
+            mShowWifi = true;
+            mShowEthernet = true;
         }
 
         setHasOptionsMenu(true);
@@ -298,12 +304,6 @@ public class DataUsageSummary extends Fragment {
 
         mUidDetailProvider = new UidDetailProvider(context);
 
-        try {
-            mStatsSession = mStatsService.openSession();
-        } catch (RemoteException e) {
-            throw new RuntimeException(e);
-        }
-
         mTabHost = (TabHost) view.findViewById(android.R.id.tabhost);
         mTabsContainer = (ViewGroup) view.findViewById(R.id.tabs_container);
         mTabWidget = (TabWidget) view.findViewById(android.R.id.tabs);