Use named stable versions of Windows and Linux graphics drivers.

In order to effect seamless driver upgrades across the Swarming fleet,
make the following configurations:

  Win10 Quadro P400
  Linux Quadro P400
  Win10 Intel HD 630
  Linux Intel HD 630

refer to "stable" versions of their graphics drivers, defined in
Swarming's bot_config.py. In this way, the definitions of these stable
versions can be changed on the fly.

Bug: 920665, 925587
Change-Id: I28f0393a5d11223be32ba25b93148667c117bc98
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1517105
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Marc-Antoine Ruel <maruel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#641390}
7 files changed