Auto-format //tools GN files

Run "gn format" and automatically shorten target references, now that GN
knows how to do this.

Bug: 40760278
Change-Id: Idf7709e04ed1787e9c1246251402d406291763c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6785953
Commit-Queue: Jesse McKenna <[email protected]>
Auto-Submit: Lei Zhang <[email protected]>
Reviewed-by: Jesse McKenna <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1492161}
NOKEYCHECK=True
GitOrigin-RevId: 1631e78d6d308eb025afc432c1569b32b9a7387f
1 file changed