Merge changes from topic "embms-cherry-pick" into oc-mr1-dev

* changes:
  Make EMBMS adjustments for 08/04
  Prepare EMBMS apis for un-hiding
diff --git a/Android.mk b/Android.mk
index 19bbc5f..ac72dc6 100644
--- a/Android.mk
+++ b/Android.mk
@@ -504,7 +504,7 @@
 	telecomm/java/com/android/internal/telecom/RemoteServiceCallback.aidl \
         telephony/java/android/telephony/mbms/IMbmsDownloadManagerCallback.aidl \
 	telephony/java/android/telephony/mbms/IMbmsStreamingManagerCallback.aidl \
-	telephony/java/android/telephony/mbms/IDownloadProgressListener.aidl \
+	telephony/java/android/telephony/mbms/IDownloadStateCallback.aidl \
         telephony/java/android/telephony/mbms/IStreamingServiceCallback.aidl \
 	telephony/java/android/telephony/mbms/vendor/IMbmsDownloadService.aidl \
 	telephony/java/android/telephony/mbms/vendor/IMbmsStreamingService.aidl \
diff --git a/telephony/java/android/telephony/MbmsDownloadManager.java b/telephony/java/android/telephony/MbmsDownloadManager.java
index 1e8cf18..d76fca5 100644
--- a/telephony/java/android/telephony/MbmsDownloadManager.java
+++ b/telephony/java/android/telephony/MbmsDownloadManager.java
@@ -20,6 +20,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.SdkConstant;
+import android.annotation.SystemApi;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -28,7 +29,7 @@
 import android.net.Uri;
 import android.os.IBinder;
 import android.os.RemoteException;
-import android.telephony.mbms.DownloadProgressListener;
+import android.telephony.mbms.DownloadStateCallback;
 import android.telephony.mbms.FileInfo;
 import android.telephony.mbms.DownloadRequest;
 import android.telephony.mbms.MbmsDownloadManagerCallback;
@@ -49,41 +50,82 @@
 
 import static android.telephony.SubscriptionManager.INVALID_SUBSCRIPTION_ID;
 
-/** @hide */
+/**
+ * This class provides functionality for file download over MBMS.
+ * @hide
+ */
 public class MbmsDownloadManager {
     private static final String LOG_TAG = MbmsDownloadManager.class.getSimpleName();
 
-    /** @hide */
-    // TODO: systemapi
+    /**
+     * Service action which must be handled by the middleware implementing the MBMS file download
+     * interface.
+     * @hide
+     */
+    @SystemApi
     @SdkConstant(SdkConstant.SdkConstantType.SERVICE_ACTION)
     public static final String MBMS_DOWNLOAD_SERVICE_ACTION =
             "android.telephony.action.EmbmsDownload";
 
     /**
-     * Integer extra indicating the result code of the download. One of
-     * {@link #RESULT_SUCCESSFUL}, {@link #RESULT_EXPIRED}, or {@link #RESULT_CANCELLED}.
+     * Integer extra that Android will attach to the intent supplied via
+     * {@link android.telephony.mbms.DownloadRequest.Builder#setAppIntent(Intent)}
+     * Indicates the result code of the download. One of
+     * {@link #RESULT_SUCCESSFUL}, {@link #RESULT_EXPIRED}, {@link #RESULT_CANCELLED}, or
+     * {@link #RESULT_IO_ERROR}.
+     *
+     * This extra may also be used by the middleware when it is sending intents to the app.
      */
     public static final String EXTRA_RESULT = "android.telephony.mbms.extra.RESULT";
 
     /**
-     * Extra containing the {@link android.telephony.mbms.FileInfo} for which the download result
-     * is for. Must not be null.
+     * {@link FileInfo} extra that Android will attach to the intent supplied via
+     * {@link android.telephony.mbms.DownloadRequest.Builder#setAppIntent(Intent)}
+     * Indicates the file for which the download result is for. Never null.
+     *
+     * This extra may also be used by the middleware when it is sending intents to the app.
      */
     public static final String EXTRA_FILE_INFO = "android.telephony.mbms.extra.FILE_INFO";
 
     /**
-     * Extra containing a single {@link Uri} indicating the location of the successfully
-     * downloaded file. Set on the intent provided via
-     * {@link android.telephony.mbms.DownloadRequest.Builder#setAppIntent(Intent)}.
-     * Will always be set to a non-null value if {@link #EXTRA_RESULT} is set to
+     * {@link Uri} extra that Android will attach to the intent supplied via
+     * {@link android.telephony.mbms.DownloadRequest.Builder#setAppIntent(Intent)}
+     * Indicates the location of the successfully
+     * downloaded file. Will always be set to a non-null value if {@link #EXTRA_RESULT} is set to
      * {@link #RESULT_SUCCESSFUL}.
      */
     public static final String EXTRA_COMPLETED_FILE_URI =
             "android.telephony.mbms.extra.COMPLETED_FILE_URI";
 
+    /**
+     * The default directory name for all MBMS temp files. If you call
+     * {@link #download(DownloadRequest, DownloadStateCallback)} without first calling
+     * {@link #setTempFileRootDirectory(File)}, this directory will be created for you under the
+     * path returned by {@link Context#getFilesDir()}.
+     */
+    public static final String DEFAULT_TOP_LEVEL_TEMP_DIRECTORY = "androidMbmsTempFileRoot";
+
+    /**
+     * Indicates that the download was successful.
+     */
     public static final int RESULT_SUCCESSFUL = 1;
+
+    /**
+     * Indicates that the download was cancelled via {@link #cancelDownload(DownloadRequest)}.
+     */
     public static final int RESULT_CANCELLED = 2;
+
+    /**
+     * Indicates that the download will not be completed due to the expiration of its download
+     * window on the carrier's network.
+     */
     public static final int RESULT_EXPIRED = 3;
+
+    /**
+     * Indicates that the download will not be completed due to an I/O error incurred while
+     * writing to temp files. This commonly indicates that the device is out of storage space,
+     * but may indicate other conditions as well (such as an SD card being removed).
+     */
     public static final int RESULT_IO_ERROR = 4;
     // TODO - more results!
 
@@ -93,10 +135,30 @@
             STATUS_PENDING_REPAIR, STATUS_PENDING_DOWNLOAD_WINDOW})
     public @interface DownloadStatus {}
 
+    /**
+     * Indicates that the middleware has no information on the file.
+     */
     public static final int STATUS_UNKNOWN = 0;
+
+    /**
+     * Indicates that the file is actively downloading.
+     */
     public static final int STATUS_ACTIVELY_DOWNLOADING = 1;
+
+    /**
+     * TODO: I don't know...
+     */
     public static final int STATUS_PENDING_DOWNLOAD = 2;
+
+    /**
+     * Indicates that the file is being repaired after the download being interrupted.
+     */
     public static final int STATUS_PENDING_REPAIR = 3;
+
+    /**
+     * Indicates that the file is waiting to download because its download window has not yet
+     * started.
+     */
     public static final int STATUS_PENDING_DOWNLOAD_WINDOW = 4;
 
     private static AtomicBoolean sIsInitialized = new AtomicBoolean(false);
@@ -267,9 +329,9 @@
      * local instance of {@link android.content.SharedPreferences} and by the middleware.
      *
      * If this method is not called at least once before calling
-     * {@link #download(DownloadRequest, DownloadProgressListener)}, the framework
+     * {@link #download(DownloadRequest, DownloadStateCallback)}, the framework
      * will default to a directory formed by the concatenation of the app's files directory and
-     * {@link android.telephony.mbms.MbmsTempFileProvider#DEFAULT_TOP_LEVEL_TEMP_DIRECTORY}.
+     * {@link MbmsDownloadManager#DEFAULT_TOP_LEVEL_TEMP_DIRECTORY}.
      *
      * Before calling this method, the app must cancel all of its pending
      * {@link DownloadRequest}s via {@link #cancelDownload(DownloadRequest)}. If this is not done,
@@ -318,7 +380,7 @@
     /**
      * Retrieves the currently configured temp file root directory. Returns the file that was
      * configured via {@link #setTempFileRootDirectory(File)} or the default directory
-     * {@link #download(DownloadRequest, DownloadProgressListener)} was called without ever setting
+     * {@link #download(DownloadRequest, DownloadStateCallback)} was called without ever setting
      * the temp file root. If neither method has been called since the last time the app's shared
      * preferences were reset, returns null.
      *
@@ -338,25 +400,21 @@
     /**
      * Requests a download of a file that is available via multicast.
      *
-     * downloadListener is an optional callback object which can be used to get progress reports
-     *     of a currently occuring download.  Note this can only run while the calling app
-     *     is running, so future downloads will simply result in resultIntents being sent
-     *     for completed or errored-out downloads.  A NULL indicates no callbacks are needed.
-     *
      * May throw an {@link IllegalArgumentException}
      *
      * If {@link #setTempFileRootDirectory(File)} has not called after the app has been installed,
      * this method will create a directory at the default location defined at
-     * {@link MbmsTempFileProvider#DEFAULT_TOP_LEVEL_TEMP_DIRECTORY} and store that as the temp
+     * {@link MbmsDownloadManager#DEFAULT_TOP_LEVEL_TEMP_DIRECTORY} and store that as the temp
      * file root directory.
      *
      * Asynchronous errors through the listener include any of the errors
      *
      * @param request The request that specifies what should be downloaded
      * @param progressListener Optional listener that will be provided progress updates
-     *                         if the app is running.
+     *                         if the app is running. If {@code null}, no callbacks will be
+     *                         provided.
      */
-    public void download(DownloadRequest request, DownloadProgressListener progressListener)
+    public void download(DownloadRequest request, @Nullable DownloadStateCallback progressListener)
             throws MbmsException {
         IMbmsDownloadService downloadService = mService.get();
         if (downloadService == null) {
@@ -368,7 +426,7 @@
                 MbmsTempFileProvider.TEMP_FILE_ROOT_PREF_FILE_NAME, 0);
         if (prefs.getString(MbmsTempFileProvider.TEMP_FILE_ROOT_PREF_NAME, null) == null) {
             File tempRootDirectory = new File(mContext.getFilesDir(),
-                    MbmsTempFileProvider.DEFAULT_TOP_LEVEL_TEMP_DIRECTORY);
+                    DEFAULT_TOP_LEVEL_TEMP_DIRECTORY);
             tempRootDirectory.mkdirs();
             setTempFileRootDirectory(tempRootDirectory);
         }
@@ -386,7 +444,7 @@
     /**
      * Returns a list of pending {@link DownloadRequest}s that originated from this application.
      * A pending request is one that was issued via
-     * {@link #download(DownloadRequest, DownloadProgressListener)} but not cancelled through
+     * {@link #download(DownloadRequest, DownloadStateCallback)} but not cancelled through
      * {@link #cancelDownload(DownloadRequest)}.
      * @return A list, possibly empty, of {@link DownloadRequest}s
      */
diff --git a/telephony/java/android/telephony/mbms/DownloadRequest.java b/telephony/java/android/telephony/mbms/DownloadRequest.java
index eae9011..f75970b 100644
--- a/telephony/java/android/telephony/mbms/DownloadRequest.java
+++ b/telephony/java/android/telephony/mbms/DownloadRequest.java
@@ -16,6 +16,7 @@
 
 package android.telephony.mbms;
 
+import android.annotation.SystemApi;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Parcel;
@@ -37,7 +38,9 @@
 import java.util.Objects;
 
 /**
- * A Parcelable class describing a pending Cell-Broadcast download request
+ * Describes a request to download files over cell-broadcast. Instances of this class should be
+ * created by the app when requesting a download, and instances of this class will be passed back
+ * to the app when the middleware updates the status of the download.
  * @hide
  */
 public class DownloadRequest implements Parcelable {
@@ -91,8 +94,8 @@
         /**
          * Set the service ID for the download request. For use by the middleware only.
          * @hide
-         * TODO: systemapi
          */
+        //@SystemApi
         public Builder setServiceId(String serviceId) {
             fileServiceId = serviceId;
             return this;
@@ -159,9 +162,9 @@
          * @param data A byte array, the contents of which should have been originally obtained
          *             from {@link DownloadRequest#getOpaqueData()}.
          * @return
-         * TODO: systemapi
          * @hide
          */
+        //@SystemApi
         public Builder setOpaqueData(byte[] data) {
             try {
                 ObjectInputStream stream = new ObjectInputStream(new ByteArrayInputStream(data));
@@ -287,8 +290,8 @@
      * {@link Builder#setOpaqueData(byte[])}.
      * @return A byte array of opaque data to persist.
      * @hide
-     * TODO: systemapi
      */
+    //@SystemApi
     public byte[] getOpaqueData() {
         try {
             ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
diff --git a/telephony/java/android/telephony/mbms/DownloadProgressListener.java b/telephony/java/android/telephony/mbms/DownloadStateCallback.java
similarity index 61%
rename from telephony/java/android/telephony/mbms/DownloadProgressListener.java
rename to telephony/java/android/telephony/mbms/DownloadStateCallback.java
index d91e9ad..a144f3e 100644
--- a/telephony/java/android/telephony/mbms/DownloadProgressListener.java
+++ b/telephony/java/android/telephony/mbms/DownloadStateCallback.java
@@ -17,17 +17,21 @@
 package android.telephony.mbms;
 
 import android.os.RemoteException;
+import android.telephony.MbmsDownloadManager;
 
 /**
- * A optional listener class used by download clients to track progress.
+ * A optional listener class used by download clients to track progress. Apps should extend this
+ * class and pass an instance into
+ * {@link android.telephony.MbmsDownloadManager#download(DownloadRequest, DownloadStateCallback)}
+ *
+ * This is optionally specified when requesting a download and will only be called while the app
+ * is running.
  * @hide
  */
-public class DownloadProgressListener extends IDownloadProgressListener.Stub {
+public class DownloadStateCallback extends IDownloadStateCallback.Stub {
+
     /**
-     * Gives process callbacks for a given DownloadRequest.
-     * This is optionally specified when requesting a download and
-     * only lives while the app is running - it's unlikely to be useful for
-     * downloads far in the future.
+     * Called when the middleware wants to report progress for a file in a {@link DownloadRequest}.
      *
      * @param request a {@link DownloadRequest}, indicating which download is being referenced.
      * @param fileInfo a {@link FileInfo} specifying the file to report progress on.  Note that
@@ -45,4 +49,18 @@
             int currentDownloadSize, int fullDownloadSize,
             int currentDecodedSize, int fullDecodedSize) throws RemoteException {
     }
+
+    /**
+     * Gives download state callbacks for a file in a {@link DownloadRequest}.
+     *
+     * @param request a {@link DownloadRequest}, indicating which download is being referenced.
+     * @param fileInfo a {@link FileInfo} specifying the file to report progress on.  Note that
+     *   the request may result in many files being downloaded and the client
+     *   may not have been able to get a list of them in advance.
+     * @param state The current state of the download.
+     */
+    @Override
+    public void state(DownloadRequest request, FileInfo fileInfo,
+            @MbmsDownloadManager.DownloadStatus int state) {
+    }
 }
diff --git a/telephony/java/android/telephony/mbms/FileInfo.java b/telephony/java/android/telephony/mbms/FileInfo.java
index f97131d..7137f24 100644
--- a/telephony/java/android/telephony/mbms/FileInfo.java
+++ b/telephony/java/android/telephony/mbms/FileInfo.java
@@ -16,26 +16,19 @@
 
 package android.telephony.mbms;
 
+import android.annotation.SystemApi;
 import android.net.Uri;
 import android.os.Parcel;
 import android.os.Parcelable;
 
 /**
- * A Parcelable class Cell-Broadcast downloadable file information.
+ * Describes a single file that is available over MBMS.
  * @hide
  */
 public class FileInfo implements Parcelable {
 
-    /**
-     * The URI into the carriers infrastructure which points to this file.
-     * This is used internally but is also one of the few pieces of data about the content that is
-     * exposed and may be needed for disambiguation by the application.
-     */
     private final Uri uri;
 
-    /**
-     * The mime type of the content.
-     */
     private final String mimeType;
 
     public static final Parcelable.Creator<FileInfo> CREATOR =
@@ -53,8 +46,8 @@
 
     /**
      * @hide
-     * TODO: systemapi
      */
+    //@SystemApi
     public FileInfo(Uri uri, String mimeType) {
         this.uri = uri;
         this.mimeType = mimeType;
@@ -76,10 +69,17 @@
         return 0;
     }
 
+    /**
+     * @return The URI in the carrier's infrastructure which points to this file. Apps should
+     * negotiate the contents of this URI separately with the carrier.
+     */
     public Uri getUri() {
         return uri;
     }
 
+    /**
+     * @return The MIME type of the file.
+     */
     public String getMimeType() {
         return mimeType;
     }
diff --git a/telephony/java/android/telephony/mbms/FileServiceInfo.java b/telephony/java/android/telephony/mbms/FileServiceInfo.java
index 8afe4d3..07c58a1 100644
--- a/telephony/java/android/telephony/mbms/FileServiceInfo.java
+++ b/telephony/java/android/telephony/mbms/FileServiceInfo.java
@@ -16,6 +16,7 @@
 
 package android.telephony.mbms;
 
+import android.annotation.SystemApi;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -26,13 +27,15 @@
 import java.util.Map;
 
 /**
- * A Parcelable class Cell-Broadcast downloadable file information.
+ * Describes a file service available from the carrier from which files can be downloaded via
+ * cell-broadcast.
  * @hide
  */
 public class FileServiceInfo extends ServiceInfo implements Parcelable {
     private final List<FileInfo> files;
 
-    /** @hide TODO: systemapi */
+    /** @hide */
+    @SystemApi
     public FileServiceInfo(Map<Locale, String> newNames, String newClassName,
             List<Locale> newLocales, String newServiceId, Date start, Date end,
             List<FileInfo> newFiles) {
@@ -70,8 +73,12 @@
         return 0;
     }
 
+    /**
+     * @return A list of files available from this service. Note that this list may not be
+     * exhaustive -- the middleware may not have information on all files that are available.
+     * Consult the carrier for an authoritative and exhaustive list.
+     */
     public List<FileInfo> getFiles() {
         return files;
     }
-
 }
diff --git a/telephony/java/android/telephony/mbms/IDownloadProgressListener.aidl b/telephony/java/android/telephony/mbms/IDownloadStateCallback.aidl
similarity index 90%
rename from telephony/java/android/telephony/mbms/IDownloadProgressListener.aidl
rename to telephony/java/android/telephony/mbms/IDownloadStateCallback.aidl
index bb9dc6c..d62247b 100755
--- a/telephony/java/android/telephony/mbms/IDownloadProgressListener.aidl
+++ b/telephony/java/android/telephony/mbms/IDownloadStateCallback.aidl
@@ -23,7 +23,7 @@
  * The optional interface used by download clients to track progress.
  * @hide
  */
-interface IDownloadProgressListener
+interface IDownloadStateCallback
 {
     /**
      * Gives progress callbacks for a given DownloadRequest.  Includes a FileInfo
@@ -31,4 +31,6 @@
      */
     void progress(in DownloadRequest request, in FileInfo fileInfo, int currentDownloadSize,
             int fullDownloadSize, int currentDecodedSize, int fullDecodedSize);
+
+    void state(in DownloadRequest request, in FileInfo fileInfo, int state);
 }
diff --git a/telephony/java/android/telephony/mbms/MbmsDownloadManagerCallback.java b/telephony/java/android/telephony/mbms/MbmsDownloadManagerCallback.java
index 17291d0..90509e1 100644
--- a/telephony/java/android/telephony/mbms/MbmsDownloadManagerCallback.java
+++ b/telephony/java/android/telephony/mbms/MbmsDownloadManagerCallback.java
@@ -22,11 +22,19 @@
 import java.util.List;
 
 /**
- * A Parcelable class with Cell-Broadcast service information.
+ * A callback class that apps should use to receive information on file downloads over
+ * cell-broadcast.
  * @hide
  */
 public class MbmsDownloadManagerCallback extends IMbmsDownloadManagerCallback.Stub {
 
+    /**
+     * Indicates that the middleware has encountered an asynchronous error.
+     * @param errorCode Any error code listed in {@link MbmsException}
+     * @param message A message, intended for debugging purposes, describing the error in further
+     *                detail.
+     * @throws RemoteException
+     */
     @Override
     public void error(int errorCode, String message) throws RemoteException {
         // default implementation empty
@@ -35,14 +43,13 @@
     /**
      * Called to indicate published File Services have changed.
      *
-     * This will only be called after the application has requested
-     * a list of file services and specified a service class list
-     * of interest AND the results of a subsequent getFileServices
-     * call with the same service class list would return different
-     * results.
+     * This will only be called after the application has requested a list of file services and
+     * specified a service class list of interest via
+     * {@link MbmsDownloadManager#getFileServices(List)}. If there are subsequent calls to
+     * {@link MbmsDownloadManager#getFileServices(List)}, this method may not be called again if
+     * the list of service classes would remain the same.
      *
-     * @param services a List of FileServiceInfos
-     *
+     * @param services The most recently updated list of available file services.
      */
     @Override
     public void fileServicesUpdated(List<FileServiceInfo> services) throws RemoteException {
diff --git a/telephony/java/android/telephony/mbms/MbmsDownloadReceiver.java b/telephony/java/android/telephony/mbms/MbmsDownloadReceiver.java
index ba7d120..8745d8e 100644
--- a/telephony/java/android/telephony/mbms/MbmsDownloadReceiver.java
+++ b/telephony/java/android/telephony/mbms/MbmsDownloadReceiver.java
@@ -16,6 +16,7 @@
 
 package android.telephony.mbms;
 
+import android.annotation.SystemApi;
 import android.content.BroadcastReceiver;
 import android.content.ContentResolver;
 import android.content.Context;
@@ -25,7 +26,7 @@
 import android.net.Uri;
 import android.os.Bundle;
 import android.telephony.MbmsDownloadManager;
-import android.telephony.mbms.vendor.VendorIntents;
+import android.telephony.mbms.vendor.VendorUtils;
 import android.util.Log;
 
 import java.io.File;
@@ -42,45 +43,66 @@
 import java.util.UUID;
 
 /**
+ * The {@link BroadcastReceiver} responsible for handling intents sent from the middleware. Apps
+ * that wish to download using MBMS APIs should declare this class in their AndroidManifest.xml as
+ * follows:
+<pre>{@code
+<receiver
+    android:name="android.telephony.mbms.MbmsDownloadReceiver"
+    android:permission="android.permission.SEND_EMBMS_INTENTS"
+    android:enabled="true"
+    android:exported="true">
+</receiver>}</pre>
  * @hide
  */
 public class MbmsDownloadReceiver extends BroadcastReceiver {
+    /** @hide */
     public static final String DOWNLOAD_TOKEN_SUFFIX = ".download_token";
+    /** @hide */
     public static final String MBMS_FILE_PROVIDER_META_DATA_KEY = "mbms-file-provider-authority";
 
     /**
-     * TODO: @SystemApi all these result codes
      * Indicates that the requested operation completed without error.
+     * @hide
      */
+    //@SystemApi
     public static final int RESULT_OK = 0;
 
     /**
      * Indicates that the intent sent had an invalid action. This will be the result if
      * {@link Intent#getAction()} returns anything other than
-     * {@link VendorIntents#ACTION_DOWNLOAD_RESULT_INTERNAL},
-     * {@link VendorIntents#ACTION_FILE_DESCRIPTOR_REQUEST}, or
-     * {@link VendorIntents#ACTION_CLEANUP}.
+     * {@link VendorUtils#ACTION_DOWNLOAD_RESULT_INTERNAL},
+     * {@link VendorUtils#ACTION_FILE_DESCRIPTOR_REQUEST}, or
+     * {@link VendorUtils#ACTION_CLEANUP}.
      * This is a fatal result code and no result extras should be expected.
+     * @hide
      */
+    //@SystemApi
     public static final int RESULT_INVALID_ACTION = 1;
 
     /**
      * Indicates that the intent was missing some required extras.
      * This is a fatal result code and no result extras should be expected.
+     * @hide
      */
+    //@SystemApi
     public static final int RESULT_MALFORMED_INTENT = 2;
 
     /**
-     * Indicates that the supplied value for {@link VendorIntents#EXTRA_TEMP_FILE_ROOT}
+     * Indicates that the supplied value for {@link VendorUtils#EXTRA_TEMP_FILE_ROOT}
      * does not match what the app has stored.
      * This is a fatal result code and no result extras should be expected.
+     * @hide
      */
+    //@SystemApi
     public static final int RESULT_BAD_TEMP_FILE_ROOT = 3;
 
     /**
      * Indicates that the manager was unable to move the completed download to its final location.
      * This is a fatal result code and no result extras should be expected.
+     * @hide
      */
+    //@SystemApi
     public static final int RESULT_DOWNLOAD_FINALIZATION_ERROR = 4;
 
     /**
@@ -88,35 +110,37 @@
      * descriptors.
      * This is a non-fatal result code -- some file descriptors may still be generated, but there
      * is no guarantee that they will be the same number as requested.
+     * @hide
      */
+    //@SystemApi
     public static final int RESULT_TEMP_FILE_GENERATION_ERROR = 5;
 
     private static final String LOG_TAG = "MbmsDownloadReceiver";
     private static final String TEMP_FILE_SUFFIX = ".embms.temp";
     private static final int MAX_TEMP_FILE_RETRIES = 5;
 
-
     private String mFileProviderAuthorityCache = null;
     private String mMiddlewarePackageNameCache = null;
 
+    /** @hide */
     @Override
     public void onReceive(Context context, Intent intent) {
         if (!verifyIntentContents(context, intent)) {
             setResultCode(RESULT_MALFORMED_INTENT);
             return;
         }
-        if (!Objects.equals(intent.getStringExtra(VendorIntents.EXTRA_TEMP_FILE_ROOT),
+        if (!Objects.equals(intent.getStringExtra(VendorUtils.EXTRA_TEMP_FILE_ROOT),
                 MbmsTempFileProvider.getEmbmsTempFileDir(context).getPath())) {
             setResultCode(RESULT_BAD_TEMP_FILE_ROOT);
             return;
         }
 
-        if (VendorIntents.ACTION_DOWNLOAD_RESULT_INTERNAL.equals(intent.getAction())) {
+        if (VendorUtils.ACTION_DOWNLOAD_RESULT_INTERNAL.equals(intent.getAction())) {
             moveDownloadedFile(context, intent);
             cleanupPostMove(context, intent);
-        } else if (VendorIntents.ACTION_FILE_DESCRIPTOR_REQUEST.equals(intent.getAction())) {
+        } else if (VendorUtils.ACTION_FILE_DESCRIPTOR_REQUEST.equals(intent.getAction())) {
             generateTempFiles(context, intent);
-        } else if (VendorIntents.ACTION_CLEANUP.equals(intent.getAction())) {
+        } else if (VendorUtils.ACTION_CLEANUP.equals(intent.getAction())) {
             cleanupTempFiles(context, intent);
         } else {
             setResultCode(RESULT_INVALID_ACTION);
@@ -124,16 +148,16 @@
     }
 
     private boolean verifyIntentContents(Context context, Intent intent) {
-        if (VendorIntents.ACTION_DOWNLOAD_RESULT_INTERNAL.equals(intent.getAction())) {
+        if (VendorUtils.ACTION_DOWNLOAD_RESULT_INTERNAL.equals(intent.getAction())) {
             if (!intent.hasExtra(MbmsDownloadManager.EXTRA_RESULT)) {
                 Log.w(LOG_TAG, "Download result did not include a result code. Ignoring.");
                 return false;
             }
-            if (!intent.hasExtra(VendorIntents.EXTRA_REQUEST)) {
+            if (!intent.hasExtra(VendorUtils.EXTRA_REQUEST)) {
                 Log.w(LOG_TAG, "Download result did not include the associated request. Ignoring.");
                 return false;
             }
-            if (!intent.hasExtra(VendorIntents.EXTRA_TEMP_FILE_ROOT)) {
+            if (!intent.hasExtra(VendorUtils.EXTRA_TEMP_FILE_ROOT)) {
                 Log.w(LOG_TAG, "Download result did not include the temp file root. Ignoring.");
                 return false;
             }
@@ -142,12 +166,12 @@
                         "Ignoring.");
                 return false;
             }
-            if (!intent.hasExtra(VendorIntents.EXTRA_FINAL_URI)) {
+            if (!intent.hasExtra(VendorUtils.EXTRA_FINAL_URI)) {
                 Log.w(LOG_TAG, "Download result did not include the path to the final " +
                         "temp file. Ignoring.");
                 return false;
             }
-            DownloadRequest request = intent.getParcelableExtra(VendorIntents.EXTRA_REQUEST);
+            DownloadRequest request = intent.getParcelableExtra(VendorUtils.EXTRA_REQUEST);
             String expectedTokenFileName = request.getHash() + DOWNLOAD_TOKEN_SUFFIX;
             File expectedTokenFile = new File(
                     MbmsUtils.getEmbmsTempFileDirForService(context, request.getFileServiceId()),
@@ -157,27 +181,27 @@
                         "Expected " + expectedTokenFile);
                 return false;
             }
-        } else if (VendorIntents.ACTION_FILE_DESCRIPTOR_REQUEST.equals(intent.getAction())) {
-            if (!intent.hasExtra(VendorIntents.EXTRA_SERVICE_INFO)) {
-                Log.w(LOG_TAG, "Temp file request did not include the associated service info." +
+        } else if (VendorUtils.ACTION_FILE_DESCRIPTOR_REQUEST.equals(intent.getAction())) {
+            if (!intent.hasExtra(VendorUtils.EXTRA_SERVICE_ID)) {
+                Log.w(LOG_TAG, "Temp file request did not include the associated service id." +
                         " Ignoring.");
                 return false;
             }
-            if (!intent.hasExtra(VendorIntents.EXTRA_TEMP_FILE_ROOT)) {
+            if (!intent.hasExtra(VendorUtils.EXTRA_TEMP_FILE_ROOT)) {
                 Log.w(LOG_TAG, "Download result did not include the temp file root. Ignoring.");
                 return false;
             }
-        } else if (VendorIntents.ACTION_CLEANUP.equals(intent.getAction())) {
-            if (!intent.hasExtra(VendorIntents.EXTRA_SERVICE_INFO)) {
-                Log.w(LOG_TAG, "Cleanup request did not include the associated service info." +
+        } else if (VendorUtils.ACTION_CLEANUP.equals(intent.getAction())) {
+            if (!intent.hasExtra(VendorUtils.EXTRA_SERVICE_ID)) {
+                Log.w(LOG_TAG, "Cleanup request did not include the associated service id." +
                         " Ignoring.");
                 return false;
             }
-            if (!intent.hasExtra(VendorIntents.EXTRA_TEMP_FILE_ROOT)) {
+            if (!intent.hasExtra(VendorUtils.EXTRA_TEMP_FILE_ROOT)) {
                 Log.w(LOG_TAG, "Cleanup request did not include the temp file root. Ignoring.");
                 return false;
             }
-            if (!intent.hasExtra(VendorIntents.EXTRA_TEMP_FILES_IN_USE)) {
+            if (!intent.hasExtra(VendorUtils.EXTRA_TEMP_FILES_IN_USE)) {
                 Log.w(LOG_TAG, "Cleanup request did not include the list of temp files in use. " +
                         "Ignoring.");
                 return false;
@@ -187,7 +211,7 @@
     }
 
     private void moveDownloadedFile(Context context, Intent intent) {
-        DownloadRequest request = intent.getParcelableExtra(VendorIntents.EXTRA_REQUEST);
+        DownloadRequest request = intent.getParcelableExtra(VendorUtils.EXTRA_REQUEST);
         Intent intentForApp = request.getIntentForApp();
 
         int result = intent.getIntExtra(MbmsDownloadManager.EXTRA_RESULT,
@@ -201,7 +225,7 @@
         }
 
         Uri destinationUri = request.getDestinationUri();
-        Uri finalTempFile = intent.getParcelableExtra(VendorIntents.EXTRA_FINAL_URI);
+        Uri finalTempFile = intent.getParcelableExtra(VendorUtils.EXTRA_FINAL_URI);
         if (!verifyTempFilePath(context, request.getFileServiceId(), finalTempFile)) {
             Log.w(LOG_TAG, "Download result specified an invalid temp file " + finalTempFile);
             setResultCode(RESULT_DOWNLOAD_FINALIZATION_ERROR);
@@ -226,13 +250,13 @@
     }
 
     private void cleanupPostMove(Context context, Intent intent) {
-        DownloadRequest request = intent.getParcelableExtra(VendorIntents.EXTRA_REQUEST);
+        DownloadRequest request = intent.getParcelableExtra(VendorUtils.EXTRA_REQUEST);
         if (request == null) {
             Log.w(LOG_TAG, "Intent does not include a DownloadRequest. Ignoring.");
             return;
         }
 
-        List<Uri> tempFiles = intent.getParcelableExtra(VendorIntents.EXTRA_TEMP_LIST);
+        List<Uri> tempFiles = intent.getParcelableExtra(VendorUtils.EXTRA_TEMP_LIST);
         if (tempFiles == null) {
             return;
         }
@@ -246,16 +270,15 @@
     }
 
     private void generateTempFiles(Context context, Intent intent) {
-        FileServiceInfo serviceInfo =
-                intent.getParcelableExtra(VendorIntents.EXTRA_SERVICE_INFO);
-        if (serviceInfo == null) {
-            Log.w(LOG_TAG, "Temp file request did not include the associated service info. " +
+        String serviceId = intent.getStringExtra(VendorUtils.EXTRA_SERVICE_ID);
+        if (serviceId == null) {
+            Log.w(LOG_TAG, "Temp file request did not include the associated service id. " +
                     "Ignoring.");
             setResultCode(RESULT_MALFORMED_INTENT);
             return;
         }
-        int fdCount = intent.getIntExtra(VendorIntents.EXTRA_FD_COUNT, 0);
-        List<Uri> pausedList = intent.getParcelableExtra(VendorIntents.EXTRA_PAUSED_LIST);
+        int fdCount = intent.getIntExtra(VendorUtils.EXTRA_FD_COUNT, 0);
+        List<Uri> pausedList = intent.getParcelableExtra(VendorUtils.EXTRA_PAUSED_LIST);
 
         if (fdCount == 0 && (pausedList == null || pausedList.size() == 0)) {
             Log.i(LOG_TAG, "No temp files actually requested. Ending.");
@@ -265,22 +288,20 @@
         }
 
         ArrayList<UriPathPair> freshTempFiles =
-                generateFreshTempFiles(context, serviceInfo, fdCount);
+                generateFreshTempFiles(context, serviceId, fdCount);
         ArrayList<UriPathPair> pausedFiles =
-                generateUrisForPausedFiles(context, serviceInfo, pausedList);
+                generateUrisForPausedFiles(context, serviceId, pausedList);
 
         Bundle result = new Bundle();
-        result.putParcelableArrayList(VendorIntents.EXTRA_FREE_URI_LIST, freshTempFiles);
-        result.putParcelableArrayList(VendorIntents.EXTRA_PAUSED_URI_LIST, pausedFiles);
+        result.putParcelableArrayList(VendorUtils.EXTRA_FREE_URI_LIST, freshTempFiles);
+        result.putParcelableArrayList(VendorUtils.EXTRA_PAUSED_URI_LIST, pausedFiles);
         setResultCode(RESULT_OK);
         setResultExtras(result);
     }
 
-    private ArrayList<UriPathPair> generateFreshTempFiles(Context context,
-            FileServiceInfo serviceInfo,
+    private ArrayList<UriPathPair> generateFreshTempFiles(Context context, String serviceId,
             int freshFdCount) {
-        File tempFileDir = MbmsUtils.getEmbmsTempFileDirForService(context,
-                serviceInfo.getServiceId());
+        File tempFileDir = MbmsUtils.getEmbmsTempFileDirForService(context, serviceId);
         if (!tempFileDir.exists()) {
             tempFileDir.mkdirs();
         }
@@ -324,14 +345,14 @@
     }
 
     private ArrayList<UriPathPair> generateUrisForPausedFiles(Context context,
-            FileServiceInfo serviceInfo, List<Uri> pausedFiles) {
+            String serviceId, List<Uri> pausedFiles) {
         if (pausedFiles == null) {
             return new ArrayList<>(0);
         }
         ArrayList<UriPathPair> result = new ArrayList<>(pausedFiles.size());
 
         for (Uri fileUri : pausedFiles) {
-            if (!verifyTempFilePath(context, serviceInfo.getServiceId(), fileUri)) {
+            if (!verifyTempFilePath(context, serviceId, fileUri)) {
                 Log.w(LOG_TAG, "Supplied file " + fileUri + " is not a valid temp file to resume");
                 setResultCode(RESULT_TEMP_FILE_GENERATION_ERROR);
                 continue;
@@ -353,12 +374,10 @@
     }
 
     private void cleanupTempFiles(Context context, Intent intent) {
-        FileServiceInfo serviceInfo =
-                intent.getParcelableExtra(VendorIntents.EXTRA_SERVICE_INFO);
-        File tempFileDir = MbmsUtils.getEmbmsTempFileDirForService(context,
-                serviceInfo.getServiceId());
+        String serviceId = intent.getStringExtra(VendorUtils.EXTRA_SERVICE_ID);
+        File tempFileDir = MbmsUtils.getEmbmsTempFileDirForService(context, serviceId);
         final List<Uri> filesInUse =
-                intent.getParcelableArrayListExtra(VendorIntents.EXTRA_TEMP_FILES_IN_USE);
+                intent.getParcelableArrayListExtra(VendorUtils.EXTRA_TEMP_FILES_IN_USE);
         File[] filesToDelete = tempFileDir.listFiles(new FileFilter() {
             @Override
             public boolean accept(File file) {
diff --git a/telephony/java/android/telephony/mbms/MbmsException.java b/telephony/java/android/telephony/mbms/MbmsException.java
index 7cf8792..601bfc9 100644
--- a/telephony/java/android/telephony/mbms/MbmsException.java
+++ b/telephony/java/android/telephony/mbms/MbmsException.java
@@ -31,7 +31,7 @@
 
     /**
      * Indicates that the app attempted to perform an operation on an instance of
-     * TODO: link android.telephony.MbmsDownloadManager or
+     * TODO link android.telephony.MbmsDownloadManager or
      * {@link android.telephony.MbmsStreamingManager} without being bound to the middleware.
      */
     public static final int ERROR_MIDDLEWARE_NOT_BOUND = 2;
@@ -48,7 +48,7 @@
         /**
          * Indicates that the app tried to create more than one instance each of
          * {@link android.telephony.MbmsStreamingManager} or
-         * TODO: link android.telephony.MbmsDownloadManager
+         * TODO link android.telephony.MbmsDownloadManager
          */
         public static final int ERROR_DUPLICATE_INITIALIZE = 101;
         /** Indicates that the app is not authorized to access media via MBMS.*/
@@ -117,10 +117,10 @@
 
     /**
      * Indicates the errors that are applicable only to the file-download use-case
-     * TODO: unhide
      * @hide
      */
     public static class DownloadErrors {
+        private DownloadErrors() { }
         /**
          * Indicates that the app is not allowed to change the temp file root at this time due to
          * outstanding download requests.
diff --git a/telephony/java/android/telephony/mbms/MbmsTempFileProvider.java b/telephony/java/android/telephony/mbms/MbmsTempFileProvider.java
index c4d033b..190ec8b 100644
--- a/telephony/java/android/telephony/mbms/MbmsTempFileProvider.java
+++ b/telephony/java/android/telephony/mbms/MbmsTempFileProvider.java
@@ -23,12 +23,11 @@
 import android.content.ContentValues;
 import android.content.Context;
 import android.content.SharedPreferences;
-import android.content.pm.PackageManager;
 import android.content.pm.ProviderInfo;
 import android.database.Cursor;
 import android.net.Uri;
-import android.os.Bundle;
 import android.os.ParcelFileDescriptor;
+import android.telephony.MbmsDownloadManager;
 
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -39,7 +38,6 @@
  * @hide
  */
 public class MbmsTempFileProvider extends ContentProvider {
-    public static final String DEFAULT_TOP_LEVEL_TEMP_DIRECTORY = "androidMbmsTempFileRoot";
     public static final String TEMP_FILE_ROOT_PREF_FILE_NAME = "MbmsTempFileRootPrefs";
     public static final String TEMP_FILE_ROOT_PREF_NAME = "mbms_temp_file_root";
 
@@ -182,8 +180,8 @@
             if (storedTempFileRoot != null) {
                 return new File(storedTempFileRoot).getCanonicalFile();
             } else {
-                return new File(context.getFilesDir(), DEFAULT_TOP_LEVEL_TEMP_DIRECTORY)
-                        .getCanonicalFile();
+                return new File(context.getFilesDir(),
+                        MbmsDownloadManager.DEFAULT_TOP_LEVEL_TEMP_DIRECTORY).getCanonicalFile();
             }
         } catch (IOException e) {
             throw new RuntimeException("Unable to canonicalize temp file root path " + e);
diff --git a/telephony/java/android/telephony/mbms/ServiceInfo.java b/telephony/java/android/telephony/mbms/ServiceInfo.java
index 423ae01..57f3495 100644
--- a/telephony/java/android/telephony/mbms/ServiceInfo.java
+++ b/telephony/java/android/telephony/mbms/ServiceInfo.java
@@ -31,7 +31,7 @@
 
 /**
  * Describes a cell-broadcast service. This class should not be instantiated directly -- use
- * {@link StreamingServiceInfo} or FileServiceInfo TODO: add link once that's unhidden
+ * {@link StreamingServiceInfo} or TODO link FileServiceInfo
  * @hide
  */
 public class ServiceInfo {
diff --git a/telephony/java/android/telephony/mbms/UriPathPair.java b/telephony/java/android/telephony/mbms/UriPathPair.java
index 7acc270..bb3823a 100644
--- a/telephony/java/android/telephony/mbms/UriPathPair.java
+++ b/telephony/java/android/telephony/mbms/UriPathPair.java
@@ -16,12 +16,19 @@
 
 package android.telephony.mbms;
 
+import android.annotation.SystemApi;
 import android.content.ContentResolver;
 import android.net.Uri;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.telephony.mbms.vendor.VendorUtils;
 
-/** @hide */
+/**
+ * Wrapper for a pair of {@link Uri}s that describe a temp file used by the middleware to
+ * download files via cell-broadcast.
+ * @hide
+ */
+//@SystemApi
 public class UriPathPair implements Parcelable {
     private final Uri mFilePathUri;
     private final Uri mContentUri;
@@ -40,7 +47,7 @@
     }
 
     /** @hide */
-    protected UriPathPair(Parcel in) {
+    private UriPathPair(Parcel in) {
         mFilePathUri = in.readParcelable(Uri.class.getClassLoader());
         mContentUri = in.readParcelable(Uri.class.getClassLoader());
     }
@@ -57,12 +64,23 @@
         }
     };
 
-    /** future systemapi */
+    /**
+     * Returns the file-path {@link Uri}. This has scheme {@code file} and points to the actual
+     * location on disk where the temp file resides. Use this when sending {@link Uri}s back to the
+     * app in the intents in {@link VendorUtils}.
+     * @return A {@code file} {@link Uri}.
+     */
     public Uri getFilePathUri() {
         return mFilePathUri;
     }
 
-    /** future systemapi */
+    /**
+     * Returns the content {@link Uri} that may be used with
+     * {@link ContentResolver#openFileDescriptor(Uri, String)} to obtain a
+     * {@link android.os.ParcelFileDescriptor} to a temp file to write to. This {@link Uri} will
+     * expire if the middleware process dies.
+     * @return A {@code content} {@link Uri}
+     */
     public Uri getContentUri() {
         return mContentUri;
     }
diff --git a/telephony/java/android/telephony/mbms/vendor/IMbmsDownloadService.aidl b/telephony/java/android/telephony/mbms/vendor/IMbmsDownloadService.aidl
index dfcc5f7..f29499d 100755
--- a/telephony/java/android/telephony/mbms/vendor/IMbmsDownloadService.aidl
+++ b/telephony/java/android/telephony/mbms/vendor/IMbmsDownloadService.aidl
@@ -21,7 +21,7 @@
 import android.telephony.mbms.DownloadRequest;
 import android.telephony.mbms.FileInfo;
 import android.telephony.mbms.IMbmsDownloadManagerCallback;
-import android.telephony.mbms.IDownloadProgressListener;
+import android.telephony.mbms.IDownloadStateCallback;
 
 /**
  * @hide
@@ -34,7 +34,7 @@
 
     int setTempFileRootDirectory(int subId, String rootDirectoryPath);
 
-    int download(in DownloadRequest downloadRequest, IDownloadProgressListener listener);
+    int download(in DownloadRequest downloadRequest, IDownloadStateCallback listener);
 
     List<DownloadRequest> listPendingDownloads(int subscriptionId);
 
diff --git a/telephony/java/android/telephony/mbms/vendor/MbmsDownloadServiceBase.java b/telephony/java/android/telephony/mbms/vendor/MbmsDownloadServiceBase.java
index 71713d0..0baa375 100644
--- a/telephony/java/android/telephony/mbms/vendor/MbmsDownloadServiceBase.java
+++ b/telephony/java/android/telephony/mbms/vendor/MbmsDownloadServiceBase.java
@@ -17,12 +17,14 @@
 package android.telephony.mbms.vendor;
 
 import android.annotation.NonNull;
+import android.annotation.SystemApi;
+import android.content.Intent;
 import android.os.RemoteException;
-import android.telephony.mbms.DownloadProgressListener;
+import android.telephony.mbms.DownloadStateCallback;
 import android.telephony.mbms.DownloadRequest;
 import android.telephony.mbms.FileInfo;
 import android.telephony.mbms.FileServiceInfo;
-import android.telephony.mbms.IDownloadProgressListener;
+import android.telephony.mbms.IDownloadStateCallback;
 import android.telephony.mbms.IMbmsDownloadManagerCallback;
 import android.telephony.mbms.MbmsDownloadManagerCallback;
 import android.telephony.mbms.MbmsException;
@@ -30,11 +32,11 @@
 import java.util.List;
 
 /**
- * Base class for MbmsDownloadService. The middleware should extend this base class rather than
- * the aidl stub for compatibility
+ * Base class for MbmsDownloadService. The middleware should return an instance of this object from
+ * its {@link android.app.Service#onBind(Intent)} method.
  * @hide
- * TODO: future systemapi
  */
+//@SystemApi
 public class MbmsDownloadServiceBase extends IMbmsDownloadService.Stub {
     /**
      * Initialize the download service for this app and subId, registering the listener.
@@ -132,12 +134,12 @@
      * this is not the case, an {@link IllegalStateException} may be thrown.
      *
      * @param downloadRequest An object describing the set of files to be downloaded.
-     * @param listener A listener through which the middleware can provide progress updates to
+     * @param callback A callback through which the middleware can provide progress updates to
      *                 the app while both are still running.
      * @return Any error from {@link android.telephony.mbms.MbmsException.GeneralErrors}
      *         or {@link MbmsException#SUCCESS}
      */
-    public int download(DownloadRequest downloadRequest, DownloadProgressListener listener) {
+    public int download(DownloadRequest downloadRequest, DownloadStateCallback callback) {
         return 0;
     }
 
@@ -146,14 +148,14 @@
      * @hide
      */
     @Override
-    public final int download(DownloadRequest downloadRequest, IDownloadProgressListener listener)
+    public final int download(DownloadRequest downloadRequest, IDownloadStateCallback callback)
             throws RemoteException {
-        return download(downloadRequest, new DownloadProgressListener() {
+        return download(downloadRequest, new DownloadStateCallback() {
             @Override
             public void progress(DownloadRequest request, FileInfo fileInfo, int
                     currentDownloadSize, int fullDownloadSize, int currentDecodedSize, int
                     fullDecodedSize) throws RemoteException {
-                listener.progress(request, fileInfo, currentDownloadSize, fullDownloadSize,
+                callback.progress(request, fileInfo, currentDownloadSize, fullDownloadSize,
                         currentDecodedSize, fullDecodedSize);
             }
         });
@@ -163,7 +165,7 @@
     /**
      * Returns a list of pending {@link DownloadRequest}s that originated from the calling
      * application, identified by its uid. A pending request is one that was issued via
-     * {@link #download(DownloadRequest, IDownloadProgressListener)} but not cancelled through
+     * {@link #download(DownloadRequest, DownloadStateCallback)} but not cancelled through
      * {@link #cancelDownload(DownloadRequest)}.
      * The middleware must return a non-null result synchronously or throw an exception
      * inheriting from {@link RuntimeException}.
diff --git a/telephony/java/android/telephony/mbms/vendor/MbmsStreamingServiceBase.java b/telephony/java/android/telephony/mbms/vendor/MbmsStreamingServiceBase.java
index 8f2786f..ecff62c 100644
--- a/telephony/java/android/telephony/mbms/vendor/MbmsStreamingServiceBase.java
+++ b/telephony/java/android/telephony/mbms/vendor/MbmsStreamingServiceBase.java
@@ -18,6 +18,7 @@
 
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
+import android.content.Intent;
 import android.net.Uri;
 import android.os.Binder;
 import android.os.RemoteException;
@@ -32,6 +33,8 @@
 import java.util.List;
 
 /**
+ * Base class for MBMS streaming services. The middleware should return an instance of this
+ * object from its {@link android.app.Service#onBind(Intent)} method.
  * @hide
  */
 //@SystemApi
diff --git a/telephony/java/android/telephony/mbms/vendor/VendorIntents.java b/telephony/java/android/telephony/mbms/vendor/VendorUtils.java
similarity index 83%
rename from telephony/java/android/telephony/mbms/vendor/VendorIntents.java
rename to telephony/java/android/telephony/mbms/vendor/VendorUtils.java
index 367c995..a01e57d 100644
--- a/telephony/java/android/telephony/mbms/vendor/VendorIntents.java
+++ b/telephony/java/android/telephony/mbms/vendor/VendorUtils.java
@@ -16,6 +16,7 @@
 
 package android.telephony.mbms.vendor;
 
+import android.annotation.SystemApi;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -28,10 +29,12 @@
 import java.util.List;
 
 /**
+ * Contains constants and utility methods for MBMS Download middleware apps to communicate with
+ * frontend apps.
  * @hide
- * TODO: future systemapi
  */
-public class VendorIntents {
+//@SystemApi
+public class VendorUtils {
 
     /**
      * The MBMS middleware should send this when a download of single file has completed or
@@ -49,7 +52,7 @@
      * The MBMS middleware should send this when it wishes to request {@code content://} URIs to
      * serve as temp files for downloads or when it wishes to resume paused downloads. Mandatory
      * extras are
-     * {@link #EXTRA_REQUEST}
+     * {@link #EXTRA_SERVICE_ID}
      *
      * Optional extras are
      * {@link #EXTRA_FD_COUNT} (0 if not present)
@@ -130,36 +133,29 @@
     public static final String EXTRA_FINAL_URI = "android.telephony.mbms.extra.FINAL_URI";
 
     /**
-     * Extra containing an instance of {@link android.telephony.mbms.ServiceInfo}, used by
+     * Extra containing a String representing a service ID, used by
      * file-descriptor requests and cleanup requests to specify which service they want to
      * request temp files or clean up temp files for, respectively.
      */
-    public static final String EXTRA_SERVICE_INFO =
-            "android.telephony.mbms.extra.SERVICE_INFO";
+    public static final String EXTRA_SERVICE_ID =
+            "android.telephony.mbms.extra.SERVICE_ID";
 
     /**
      * Retrieves the {@link ComponentName} for the {@link android.content.BroadcastReceiver} that
      * the various intents from the middleware should be targeted towards.
-     * @param uid The uid of the frontend app.
+     * @param packageName The package name of the app.
      * @return The component name of the receiver that the middleware should send its intents to,
      * or null if the app didn't declare it in the manifest.
      */
-    public static ComponentName getAppReceiverFromUid(Context context, int uid) {
-        String[] packageNames = context.getPackageManager().getPackagesForUid(uid);
-        if (packageNames == null) {
-            return null;
-        }
-
-        for (String packageName : packageNames) {
-            ComponentName candidate = new ComponentName(packageName,
-                    MbmsDownloadReceiver.class.getCanonicalName());
-            Intent queryIntent = new Intent();
-            queryIntent.setComponent(candidate);
-            List<ResolveInfo> receivers =
-                    context.getPackageManager().queryBroadcastReceivers(queryIntent, 0);
-            if (receivers != null && receivers.size() > 0) {
-                return candidate;
-            }
+    public static ComponentName getAppReceiverFromPackageName(Context context, String packageName) {
+        ComponentName candidate = new ComponentName(packageName,
+                MbmsDownloadReceiver.class.getCanonicalName());
+        Intent queryIntent = new Intent();
+        queryIntent.setComponent(candidate);
+        List<ResolveInfo> receivers =
+                context.getPackageManager().queryBroadcastReceivers(queryIntent, 0);
+        if (receivers != null && receivers.size() > 0) {
+            return candidate;
         }
         return null;
     }