diff --git a/core/java/android/app/IWallpaperManager.aidl b/core/java/android/app/IWallpaperManager.aidl
index 9cd70e6..db7d54b 100644
--- a/core/java/android/app/IWallpaperManager.aidl
+++ b/core/java/android/app/IWallpaperManager.aidl
@@ -49,7 +49,7 @@
     /**
      * Set the live wallpaper. This only affects the system wallpaper.
      */
-    void setWallpaperComponentChecked(in ComponentName name, in String callingPackage);
+    void setWallpaperComponentChecked(in ComponentName name, in String callingPackage, int userId);
 
     /**
      * Set the live wallpaper. This only affects the system wallpaper.
diff --git a/core/java/android/app/WallpaperManager.java b/core/java/android/app/WallpaperManager.java
index 79f2a1e..9f1c5a6 100644
--- a/core/java/android/app/WallpaperManager.java
+++ b/core/java/android/app/WallpaperManager.java
@@ -1400,12 +1400,26 @@
      */
     @SystemApi
     public boolean setWallpaperComponent(ComponentName name) {
+        return setWallpaperComponent(name, UserHandle.myUserId());
+    }
+
+    /**
+     * Set the live wallpaper.
+     *
+     * This can only be called by packages with android.permission.SET_WALLPAPER_COMPONENT
+     * permission. The caller must hold the INTERACT_ACROSS_USERS_FULL permission to change
+     * another user's wallpaper.
+     *
+     * @hide
+     */
+    public boolean setWallpaperComponent(ComponentName name, int userId) {
         if (sGlobals.mService == null) {
             Log.w(TAG, "WallpaperService not running");
             throw new RuntimeException(new DeadSystemException());
         }
         try {
-            sGlobals.mService.setWallpaperComponentChecked(name, mContext.getOpPackageName());
+            sGlobals.mService.setWallpaperComponentChecked(name, mContext.getOpPackageName(),
+                    userId);
             return true;
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
diff --git a/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java b/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
index 39a3412..52b5a54 100644
--- a/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
+++ b/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
@@ -55,7 +55,8 @@
             com.android.systemui.media.RingtonePlayer.class,
             com.android.systemui.keyboard.KeyboardUI.class,
             com.android.systemui.tv.pip.PipUI.class,
-            com.android.systemui.shortcut.ShortcutKeyDispatcher.class
+            com.android.systemui.shortcut.ShortcutKeyDispatcher.class,
+            com.android.systemui.VendorServices.class
     };
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/VendorServices.java b/packages/SystemUI/src/com/android/systemui/VendorServices.java
new file mode 100644
index 0000000..0be6b12
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/VendorServices.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.systemui;
+
+/**
+ * Placeholder for any vendor-specific services.
+ */
+public class VendorServices extends SystemUI {
+
+    @Override
+    public void start() {
+        // no-op
+    }
+
+}
diff --git a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
index 06e5e73..193dc03 100644
--- a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
+++ b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
@@ -1453,19 +1453,27 @@
     }
 
     @Override
-    public void setWallpaperComponentChecked(ComponentName name, String callingPackage) {
+    public void setWallpaperComponentChecked(ComponentName name, String callingPackage,
+            int userId) {
+
         if (isWallpaperSupported(callingPackage) && isSetWallpaperAllowed(callingPackage)) {
-            setWallpaperComponent(name);
+            setWallpaperComponent(name, userId);
         }
     }
 
     // ToDo: Remove this version of the function
     @Override
     public void setWallpaperComponent(ComponentName name) {
+        setWallpaperComponent(name, UserHandle.getCallingUserId());
+    }
+
+    private void setWallpaperComponent(ComponentName name, int userId) {
+        userId = ActivityManager.handleIncomingUser(getCallingPid(), getCallingUid(), userId,
+                false /* all */, true /* full */, "changing live wallpaper", null /* pkg */);
         checkPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT);
+
         synchronized (mLock) {
             if (DEBUG) Slog.v(TAG, "setWallpaperComponent name=" + name);
-            int userId = UserHandle.getCallingUserId();
             WallpaperData wallpaper = mWallpaperMap.get(userId);
             if (wallpaper == null) {
                 throw new IllegalStateException("Wallpaper not yet initialized for user " + userId);