GitLab

external_constants.cc now uses ExternalConstantsOverrider to load overrides
rather than DevOverridesProvider. Tests have been updated to use
ExternalConstantsBuilder or write the override file directly, whichever
is more appropriate.

Bug: 1154901
Change-Id: I35383e25058c1799f99583128b5e695cbf90ac1d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2634264Reviewed-by: Sorin Jianu <sorin@chromium.org>
Commit-Queue: Adam Norberg <norberg@google.com>
Cr-Commit-Position: refs/heads/master@{#845352}