GitLab

Crashes in WebEngine are reported as FuchsiaWebEngine, and crashes in
CastRunner are reported as FuchsiaCastRunner.
The version is also reported. The channel is the empty string for now.

Bug: 1050339
Test: While the components are running, run `fx bugreport`. Then verify the mapping is registered in the bugreport's inspect.json at crash_reports.cmx > fidl > crash_register > mappings.
Change-Id: I86ffc4c0c1af19f9f34a462ee7fce77068cbded1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2315796Reviewed-by: Wez <wez@chromium.org>
Commit-Queue: David Dorwin <ddorwin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791383}