Merge "Fix infinite loop during package-usage.list file upgrade" into nyc-dev

am: 074e23c

* commit '074e23c37b841065eefc26a79175fb3140bdc998':
  Fix infinite loop during package-usage.list file upgrade

Change-Id: I4b3a67885fd22282cc0b987d69265da04ead7de1

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -1217,12 +1217,7 @@ public class PackageManagerService extends IPackageManager.Stub {
             // Initial version of the file had no version number and stored one
             // package-timestamp pair per line.
             // Note that the first line has already been read from the InputStream.
-            String line = firstLine;
-            while (true) {
-                if (line == null) {
-                    break;
-                }
-
+            for (String line = firstLine; line != null; line = readLine(in, sb)) {
                 String[] tokens = line.split(" ");
                 if (tokens.length != 2) {
                     throw new IOException("Failed to parse " + line +
@@ -1241,8 +1236,6 @@ public class PackageManagerService extends IPackageManager.Stub {
                         reason++) {
                     pkg.mLastPackageUsageTimeInMills[reason] = timestamp;
                 }
-
-                line = readLine(in, sb);
             }
         }