Fix import formatting

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=167584287

extensions/mediasession/src/main/java/com/google/android/exoplayer2/ext/mediasession/DefaultPlaybackController.java

@@ -18,7 +18,6 @@ package com.google.android.exoplayer2.ext.mediasession;
 import android.os.Bundle;
 import android.os.ResultReceiver;
 import android.support.v4.media.session.PlaybackStateCompat;
-
 import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Player;
 import com.google.android.exoplayer2.util.RepeatModeUtil;

extensions/mediasession/src/main/java/com/google/android/exoplayer2/ext/mediasession/MediaSessionConnector.java

@@ -40,7 +40,6 @@ import com.google.android.exoplayer2.source.TrackGroupArray;
 import com.google.android.exoplayer2.trackselection.TrackSelectionArray;
 import com.google.android.exoplayer2.util.ErrorMessageProvider;
 import com.google.android.exoplayer2.util.RepeatModeUtil;
-
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;

extensions/mediasession/src/main/java/com/google/android/exoplayer2/ext/mediasession/RepeatModeActionProvider.java

-package com.google.android.exoplayer2.ext.mediasession;
 /*
  * Copyright (c) 2017 The Android Open Source Project
  *
@@ -14,6 +13,8 @@ package com.google.android.exoplayer2.ext.mediasession;
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+package com.google.android.exoplayer2.ext.mediasession;
+
 import android.content.Context;
 import android.os.Bundle;
 import android.support.v4.media.session.PlaybackStateCompat;

extensions/mediasession/src/main/java/com/google/android/exoplayer2/ext/mediasession/TimelineQueueNavigator.java

@@ -25,7 +25,6 @@ import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.Player;
 import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.util.Util;
-
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;