Merge "Add --classes optional flag in list_files" am: 32efc846 am:...

Merge "Add --classes optional flag in list_files" am: 32efc846 am: 46c121d2 am: 4c589c72 am: 4c9218ea am: a185c056

Original change: https://android-review.googlesource.com/c/platform/build/+/2635796



Change-Id: I7b6adb8c5b3d8cfb9c0e249f9dfda2c44875a144
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>