Remove unnecessary allocation+unboxing of objects.

Transforming String->int can be done with 0 allocations
using Integer.parseInt.

bug: 28078871
Change-Id: I8d9f322d7154728849dde61ef282046032858d60

services/core/java/com/android/server/ConnectivityService.java

@@ -1747,7 +1747,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
         if(restoreDefaultNetworkDelayStr != null &&
                 restoreDefaultNetworkDelayStr.length() != 0) {
             try {
-                return Integer.valueOf(restoreDefaultNetworkDelayStr);
+                return Integer.parseInt(restoreDefaultNetworkDelayStr);
             } catch (NumberFormatException e) {
             }
         }

services/core/java/com/android/server/connectivity/NetworkDiagnostics.java

@@ -548,8 +548,7 @@ public class NetworkDiagnostics {
             mMeasurement.description += " src{" + getSocketAddressString() + "}";
 
             // This needs to be fixed length so it can be dropped into the pre-canned packet.
-            final String sixRandomDigits =
-                    Integer.valueOf(mRandom.nextInt(900000) + 100000).toString();
+            final String sixRandomDigits = String.valueOf(mRandom.nextInt(900000) + 100000);
             mMeasurement.description += " qtype{" + mQueryType + "}"
                     + " qname{" + sixRandomDigits + "-android-ds.metric.gstatic.com}";