Add dummy DEPS file for patched YASM.

This will allow clients that use the subtree mirror to specify a
revision for patched YASM without needing nested DEPS.

Also cleans up the gitignore for the subtree mirror so gclient
revert will work properly.

Bug: 1017514
Change-Id: I7a3a51d1ab79437dd315a246b833211d0ef08df3
Reviewed-by: Dirk Pranke <>
Reviewed-by: Dale Curtis <>
Commit-Queue: Jamie Madill <>
Cr-Original-Commit-Position: refs/heads/master@{#709539}
Cr-Mirrored-Commit: 412bd0e3aff5a1b93561db69a44b4a55ddc65dc3
2 files changed