Make thomasanderson an OWNER of install-build-deps.sh

R=dpranke
BUG=None

Change-Id: I7910a9de199f3d883b125bcbe3b79698adc24a7d
Reviewed-on: https://chromium-review.googlesource.com/1036588Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#554932}

build/OWNERS

@@ -11,6 +11,7 @@ hans@chromium.org
 
 per-file .gitignore=*
 per-file check_gn_headers_whitelist.txt=*
+per-file install-build-deps.sh=thomasanderson@chromium.org
 per-file mac_toolchain.py=erikchen@chromium.org
 per-file mac_toolchain.py=justincohen@chromium.org
 per-file package_mac_toolchain.py=erikchen@chromium.org