Give DefaultContainerService all external storage.

Now we can bind to just one instance of DCS, instead of requiring
one-per-user. This also means we can operate on otherwise-stopped
users.

Bug: 7003520
Change-Id: I4881e064ae8942907f6a02c6b868926223455cdc

Author: jsharkey

core/java/android/os/Environment.java

@@ -33,6 +33,9 @@ public class Environment {
     private static final String ENV_EXTERNAL_STORAGE = "EXTERNAL_STORAGE";
     private static final String ENV_EMULATED_STORAGE_TARGET = "EMULATED_STORAGE_TARGET";
 
+    /** {@hide} */
+    public static String DIRECTORY_ANDROID = "Android";
+
     private static final File ROOT_DIRECTORY
             = getDirectory("ANDROID_ROOT", "/system");
 
@@ -111,11 +114,11 @@ public UserEnvironment(int userId) {
                 // /storage/sdcard0
                 mExternalStorage = new File(rawExternalStorage);
                 // /storage/sdcard0/Android/obb
-                mExternalStorageAndroidObb = buildPath(mExternalStorage, "Android", "obb");
+                mExternalStorageAndroidObb = buildPath(mExternalStorage, DIRECTORY_ANDROID, "obb");
             }
 
-            mExternalStorageAndroidData = buildPath(mExternalStorage, "Android", "data");
-            mExternalStorageAndroidMedia = buildPath(mExternalStorage, "Android", "media");
+            mExternalStorageAndroidData = buildPath(mExternalStorage, DIRECTORY_ANDROID, "data");
+            mExternalStorageAndroidMedia = buildPath(mExternalStorage, DIRECTORY_ANDROID, "media");
         }
 
         public File getExternalStorageDirectory() {

packages/DefaultContainerService/AndroidManifest.xml

@@ -8,6 +8,7 @@
     <uses-permission android:name="android.permission.ASEC_MOUNT_UNMOUNT"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.ACCESS_CACHE_FILESYSTEM" />
+    <uses-permission android:name="android.permission.ACCESS_ALL_EXTERNAL_STORAGE" />
 
     <application android:label="@string/service_name"
                  android:allowBackup="false">