Filter required files before running clang tool on Windows.

Compile commands on Windows need updating before clang tools run on
them. This process is slow as the compile commands file is quite large.
This CL filters the compile commands file to only include the required
items, and then updates the remaining for the clang tools.

Bug: 690323
Change-Id: I9cf45018afb47a3fbf67a05e5e0ab16de575de76
Reviewed-on: https://chromium-review.googlesource.com/921222
Commit-Queue: Ramin Halavati <[email protected]>
Reviewed-by: Daniel Cheng <[email protected]>
Cr-Commit-Position: refs/heads/master@{#538721}
2 files changed