Rename MediaPlayerHostMsg_{DemuxerReady,ReadFromDemuxerAck}_Params to Media{Configs,Data}.

media/base/android/media_player_android.cc

Index: media/base/android/media_player_android.cc
diff --git a/media/base/android/media_player_android.cc b/media/base/android/media_player_android.cc
index c0055069e693aa19fdfa4798b960810cd57986ec..6b1626a2b6442ad704e0e31d4ed17af4ce008a6d 100644
--- a/media/base/android/media_player_android.cc
+++ b/media/base/android/media_player_android.cc
@@ -63,13 +63,11 @@ void MediaPlayerAndroid::ReleaseMediaResourcesFromManager() {
     manager_->ReleaseMediaResources(player_id_);
 }
 
-void MediaPlayerAndroid::DemuxerReady(
-    const MediaPlayerHostMsg_DemuxerReady_Params& params) {
+void MediaPlayerAndroid::DemuxerReady(const DemuxerConfigs& configs) {
   NOTREACHED() << "Unexpected ipc received";
 }
 
-void MediaPlayerAndroid::ReadFromDemuxerAck(
-    const MediaPlayerHostMsg_ReadFromDemuxerAck_Params& params) {
+void MediaPlayerAndroid::ReadFromDemuxerAck(const DemuxerData& data) {
   NOTREACHED() << "Unexpected ipc received";
 }