Add ninja_args option to web_view build script.

Bug: None
Change-Id: Ic9427bdefbab9ac6caee15f1d6a43a23c7830cbc
Reviewed-on: https://chromium-review.googlesource.com/592235
Commit-Queue: Mike Dougherty <[email protected]>
Reviewed-by: Hiroshi Ichikawa <[email protected]>
Cr-Commit-Position: refs/heads/master@{#491885}
1 file changed