dan sinclair b0acbd436d Fix build/namespaces issues
This CL fixes up various build/namespaces lint errors and enables
the lint check.

Bug: dawn:1339
Change-Id: Ib2edd0019cb010e2c6226abce6cfee50a0b4b763
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87482
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
2022-04-21 16:46:56 +00:00
..
2022-04-21 16:46:56 +00:00