GN: Set |enable_webvr| in the declare_args() block.
This effectively makes it a configurable argument that can be changed by
downstreams and users alike; so far, trying to change it via `gn args'
failed with:
The variable "enable_webvr" was set as a build argument
but never appeared in a declare_args() block in any buildfile.
BUG=389343
R=bajones@chromium.org,brettw@chromium.org,dpranke@chromium.org
Review-Url: https://codereview.chromium.org/2198003002
Cr-Commit-Position: refs/heads/master@{#409083}
1 file changed
