Move classes Player depends on to common

This will allow player to be moved to common.

#player-to-common

PiperOrigin-RevId: 347375344

library/core/src/main/java/com/google/android/exoplayer2/trackselection/TrackSelectorInterface.java → library/common/src/main/java/com/google/android/exoplayer2/trackselection/TrackSelectorInterface.java

@@ -15,10 +15,9 @@
  */
 package com.google.android.exoplayer2.trackselection;
 
-import com.google.android.exoplayer2.Player;
-
+// TODO(b/172315872) Replace @code by @link when Player has been migrated to common
 /**
- * The component of a {@link Player} responsible for selecting tracks to be played.
+ * The component of a {@code Player} responsible for selecting tracks to be played.
  *
  * <p>No Player agnostic track selection is currently supported. Clients should downcast to the
  * implementation's track selection.