StorageManagerService: pre-create Android/media app dirs

Ensure vold creates Android/media/<pkg> alongside data and obb dirs
during user storage preparation, so proper ACLs are applied.

Change-Id: Ia684c007eda0c09fbc58cd426f33d43a
Signed-off-by: Quince <quinceroms@gmail.com>

Author: QuinceROMs

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

@@ -4869,10 +4869,13 @@ public boolean prepareStorageDirs(int userId, Set<String> packageList,
                     final String packageDataDir =
                             String.format(Locale.US, "/storage/emulated/%d/Android/data/%s/",
                                     userId, pkg);
+                    final String packageMediaDir =
+                            String.format(Locale.US, "/storage/emulated/%d/Android/media/%s/",
+                                    userId, pkg);
 
-                    // Create package obb and data dir if it doesn't exist.
+                    // Create package obb, data and media dir if it doesn't exist.
                     int appUid = UserHandle.getUid(userId, mPmInternal.getPackage(pkg).getUid());
-                    vold.ensureAppDirsCreated(new String[] {packageObbDir, packageDataDir}, appUid);
+                    vold.ensureAppDirsCreated(new String[] {packageObbDir, packageDataDir, packageMediaDir}, appUid);
                 }
             } catch (ServiceManager.ServiceNotFoundException | RemoteException e) {
                 Slog.e(TAG, "Unable to create obb and data directories for " + processName,e);