Generate the IPlayer interface with AIDL.

This removes the manually rolled IPlayer implementation and instead uses
an aidl generated implementation. The IPlayer aidl file is moved from
frameworks/base/.

Test: run cts --module CtsMediaTestCases
Bug: 64223827
Change-Id: Ia609f7ba1cc6f71ce919d6174dd8b5e0e1b05575
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index efe947a..49101d1 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -48,6 +48,8 @@
 
 namespace android {
 
+using media::VolumeShaper;
+
 MediaPlayer::MediaPlayer()
 {
     ALOGV("constructor");