Add OBB size to PackageStats

Bug: 3356814
Change-Id: I4f871fb9fd0cb2f3177cc756631f95d928862571
diff --git a/services/java/com/android/server/PackageManagerService.java b/services/java/com/android/server/PackageManagerService.java
index 19667d4..d2c6475 100644
--- a/services/java/com/android/server/PackageManagerService.java
+++ b/services/java/com/android/server/PackageManagerService.java
@@ -4853,6 +4853,11 @@
                         .getExternalStorageAppMediaDirectory(mStats.packageName);
                 mStats.externalMediaSize = mContainerService
                         .calculateDirectorySize(externalCacheDir.getPath());
+
+                final File externalObbDir = Environment
+                        .getExternalStorageAppObbDirectory(mStats.packageName);
+                mStats.externalObbSize = mContainerService.calculateDirectorySize(externalObbDir
+                        .getPath());
             }
         }