New API on java's MediaPlayer to suspend/resume a session.

related-to-bug: 2231576
diff --git a/include/media/IMediaPlayer.h b/include/media/IMediaPlayer.h
index b6f654f..2619691 100644
--- a/include/media/IMediaPlayer.h
+++ b/include/media/IMediaPlayer.h
@@ -46,6 +46,8 @@
     virtual status_t        setAudioStreamType(int type) = 0;
     virtual status_t        setLooping(int loop) = 0;
     virtual status_t        setVolume(float leftVolume, float rightVolume) = 0;
+    virtual status_t        suspend() = 0;
+    virtual status_t        resume() = 0;
 
     // Invoke a generic method on the player by using opaque parcels
     // for the request and reply.
diff --git a/include/media/MediaPlayerInterface.h b/include/media/MediaPlayerInterface.h
index ecb20e8..9e606d9 100644
--- a/include/media/MediaPlayerInterface.h
+++ b/include/media/MediaPlayerInterface.h
@@ -118,6 +118,9 @@
     virtual status_t    reset() = 0;
     virtual status_t    setLooping(int loop) = 0;
     virtual player_type playerType() = 0;
+    virtual status_t    suspend() { return INVALID_OPERATION; }
+    virtual status_t    resume() { return INVALID_OPERATION; }
+
     virtual void        setNotifyCallback(void* cookie, notify_callback_f notifyFunc) {
                             mCookie = cookie; mNotify = notifyFunc; }
     // Invoke a generic method on the player by using opaque parcels
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
index 8dc7c8a..7fad1b7 100644
--- a/include/media/mediaplayer.h
+++ b/include/media/mediaplayer.h
@@ -165,6 +165,8 @@
             status_t        invoke(const Parcel& request, Parcel *reply);
             status_t        setMetadataFilter(const Parcel& filter);
             status_t        getMetadata(bool update_only, bool apply_filter, Parcel *metadata);
+            status_t        suspend();
+            status_t        resume();
 private:
             void            clear_l();
             status_t        seekTo_l(int msec);
diff --git a/media/libmedia/IMediaPlayer.cpp b/media/libmedia/IMediaPlayer.cpp
index 9c127d4..ed792b3 100644
--- a/media/libmedia/IMediaPlayer.cpp
+++ b/media/libmedia/IMediaPlayer.cpp
@@ -43,6 +43,8 @@
     INVOKE,
     SET_METADATA_FILTER,
     GET_METADATA,
+    SUSPEND,
+    RESUME,
 };
 
 class BpMediaPlayer: public BpInterface<IMediaPlayer>
@@ -199,6 +201,26 @@
         remote()->transact(GET_METADATA, request, reply);
         return reply->readInt32();
     }
+
+    status_t suspend() {
+        Parcel request;
+        request.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        Parcel reply;
+        remote()->transact(SUSPEND, request, &reply);
+
+        return reply.readInt32();
+    }
+
+    status_t resume() {
+        Parcel request;
+        request.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        Parcel reply;
+        remote()->transact(RESUME, request, &reply);
+
+        return reply.readInt32();
+    }
 };
 
 IMPLEMENT_META_INTERFACE(MediaPlayer, "android.media.IMediaPlayer");
@@ -299,6 +321,16 @@
             reply->writeInt32(setMetadataFilter(data));
             return NO_ERROR;
         } break;
+        case SUSPEND: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            reply->writeInt32(suspend());
+            return NO_ERROR;
+        } break;
+        case RESUME: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            reply->writeInt32(resume());
+            return NO_ERROR;
+        } break;
         case GET_METADATA: {
             CHECK_INTERFACE(IMediaPlayer, data, reply);
             const status_t retcode = getMetadata(data.readInt32(), data.readInt32(), reply);
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index 01cd8ce..2157814 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -167,6 +167,16 @@
     return INVALID_OPERATION;
 }
 
+status_t MediaPlayer::suspend() {
+    Mutex::Autolock _l(mLock);
+    return mPlayer->suspend();
+}
+
+status_t MediaPlayer::resume() {
+    Mutex::Autolock _l(mLock);
+    return mPlayer->resume();
+}
+
 status_t MediaPlayer::setMetadataFilter(const Parcel& filter)
 {
     LOGD("setMetadataFilter");
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 55b06f4..b4fc035 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -970,6 +970,20 @@
     return OK;
 }
 
+status_t MediaPlayerService::Client::suspend() {
+    sp<MediaPlayerBase> p = getPlayer();
+    if (p == 0) return UNKNOWN_ERROR;
+
+    return p->suspend();
+}
+
+status_t MediaPlayerService::Client::resume() {
+    sp<MediaPlayerBase> p = getPlayer();
+    if (p == 0) return UNKNOWN_ERROR;
+
+    return p->resume();
+}
+
 status_t MediaPlayerService::Client::prepareAsync()
 {
     LOGV("[%d] prepareAsync", mConnId);
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index c9cae35..2408c62 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -222,6 +222,8 @@
         virtual status_t        getMetadata(bool update_only,
                                             bool apply_filter,
                                             Parcel *reply);
+        virtual status_t        suspend();
+        virtual status_t        resume();
 
         sp<MediaPlayerBase>     createPlayer(player_type playerType);
 
diff --git a/media/libmediaplayerservice/StagefrightPlayer.cpp b/media/libmediaplayerservice/StagefrightPlayer.cpp
index 1bfcf65..7776b4e 100644
--- a/media/libmediaplayerservice/StagefrightPlayer.cpp
+++ b/media/libmediaplayerservice/StagefrightPlayer.cpp
@@ -136,6 +136,16 @@
     return STAGEFRIGHT_PLAYER;
 }
 
+status_t StagefrightPlayer::suspend() {
+    LOGV("suspend");
+    return mPlayer->suspend();
+}
+
+status_t StagefrightPlayer::resume() {
+    LOGV("resume");
+    return mPlayer->resume();
+}
+
 status_t StagefrightPlayer::invoke(const Parcel &request, Parcel *reply) {
     return INVALID_OPERATION;
 }
diff --git a/media/libmediaplayerservice/StagefrightPlayer.h b/media/libmediaplayerservice/StagefrightPlayer.h
index 9e6674a..4446582 100644
--- a/media/libmediaplayerservice/StagefrightPlayer.h
+++ b/media/libmediaplayerservice/StagefrightPlayer.h
@@ -50,6 +50,8 @@
     virtual player_type playerType();
     virtual status_t invoke(const Parcel &request, Parcel *reply);
     virtual void setAudioSink(const sp<AudioSink> &audioSink);
+    virtual status_t suspend();
+    virtual status_t resume();
 
 private:
     AwesomePlayer *mPlayer;