QS/PW: Check for mobile data instead of telephony permissions (1/2)

For QuickSettings and Power Widget check if there is
ConnectivityManager.TYPE_MOBILE network avaialbe directly instead of relying
on a checking for the PackageManager.FEATURE_TELEPHONY permission.  Some
devices like tilapia (Nexus 7 GSM) has mobile data but does not set the
telephony permission.

Patchset 2:
   	- Use ConnectivityManager.isNetworkSupported() instead of checking for a null
	  value returned from ConnectivityManager.getNetworkInfo(). Thanks
	- Have MobileNetworkTile use the QSUtil deviceSupportsMobileData method

Change-Id: I71bd6217cbe08622f805de4ae30a87df11340f5f
Fixes: CYAN-803

1 files changed, 3 insertions, 3 deletions

diff --git a/core/java/com/android/internal/util/cm/QSUtils.java b/core/java/com/android/internal/util/cm/QSUtils.java
index 72a285b..3da9a7c 100644
--- a/core/java/com/android/internal/util/cm/QSUtils.java
+++ b/core/java/com/android/internal/util/cm/QSUtils.java
@@ -31,9 +31,9 @@ public class QSUtils {
             return (dm.getWifiDisplayStatus().getFeatureState() != WifiDisplayStatus.FEATURE_STATE_UNAVAILABLE);
         }
 
-        public static boolean deviceSupportsTelephony(Context ctx) {
-            PackageManager pm = ctx.getPackageManager();
-            return pm.hasSystemFeature(PackageManager.FEATURE_TELEPHONY);
+        public static boolean deviceSupportsMobileData(Context ctx) {
+            ConnectivityManager cm = (ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE);
+            return cm.isNetworkSupported(ConnectivityManager.TYPE_MOBILE);
         }
 
         public static boolean deviceSupportsBluetooth() {