Rewrote DnsPinger - now is async and concurrant

Change-Id: I93e1374ae857832935202614e34ce18f040fcfc7
diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index a564d97..aff18dc 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -774,4 +774,4 @@
         } catch (RemoteException e) {
         }
     }
-}
+}
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