Replace GPU list versions with Chromium git hashes

This removes the manually-updated software_rendering_list and
gpu_driver_bug_list versions, replacing them with Chromium
git commit hashes. These hashes are used to generate
permalinks, like this one:
http://chromium.googlesource.com/chromium/src/+/57c9d07b416b5a2ea23d28247300e4af36329bdc/gpu/config/software_rendering_list.json

Bug: 772177
Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_chromium_dbg_ng;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: Id23a5e05506492999a43cd173e4659095f75fe4c
Reviewed-on: https://chromium-review.googlesource.com/728950
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#510568}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 96bd9ef90d95efa332485195e03c63477b90bb07
2 files changed