Use infra committer list from chrome-infra-auth

infra/config/cq.cfg

 # Commit Queue configuration file. The documentation of the format can be found
 # at http://luci-config.appspot.com/schemas/projects/refs:cq.cfg.
 
 version: 1
 cq_name: "depot_tools"
 cq_status_url: "https://chromium-cq-status.appspot.com"
 svn_repo_url: "svn://svn.chromium.org/chrome/trunk/tools/depot_tools"
 
 rietveld {
   url: "https://codereview.chromium.org"
   project_bases: "^svn\\:\\/\\/svn\\.chromium\\.org\\/chrome/trunk/tools/depot_tools(|/.*)$"
   project_bases: "^svn\\:\\/\\/chrome\\-svn\\/chrome/trunk/tools/depot_tools(|/.*)$"
   project_bases: "^svn\\:\\/\\/chrome\\-svn\\.corp\\/chrome/trunk/tools/depot_tools(|/.*)$"
   project_bases: "^svn\\:\\/\\/chrome\\-svn\\.corp\\.google\\.com\\/chrome/trunk/tools/depot_tools(|/.*)$"
   project_bases: "^http\\:\\/\\/src\\.chromium\\.org\\/svn/trunk/tools/depot_tools(|/.*)$"
   project_bases: "^https\\:\\/\\/src\\.chromium\\.org\\/svn/trunk/tools/depot_tools(|/.*)$"
   project_bases: "^http\\:\\/\\/src\\.chromium\\.org\\/chrome/trunk/tools/depot_tools(|/.*)$"
   project_bases: "^https\\:\\/\\/src\\.chromium\\.org\\/chrome/trunk/tools/depot_tools(|/.*)$"
   project_bases: "^https?\\:\\/\\/git\\.chromium\\.org\\/git\\/chromium\\/tools\\/depot_tools(?:\\.git)?\\@[a-zA-Z0-9\\-_\\.]+$"
   project_bases: "^https?\\:\\/\\/git\\.chromium\\.org\\/chromium\\/tools\\/depot_tools(?:\\.git)?\\@[a-zA-Z0-9\\-_\\.]+$"
   project_bases: "^https?\\:\\/\\/chromium\\.googlesource\\.com\\/chromium\\/tools\\/depot_tools(?:\\.git)?\\@[a-zA-Z0-9\\-_\\.]+$"
   project_bases: "^https?\\:\\/\\/chromium\\.googlesource\\.com\\/a\\/chromium\\/tools\\/depot_tools(?:\\.git)?\\@[a-zA-Z0-9\\-_\\.]+$"
 }
 
 verifiers {
   reviewer_lgtm {
-    committer_list: "chromium"
+    committer_list: "project-infra-committers"
   }
 
   try_job {
     buckets {
       name: "tryserver.chromium.linux"
       builders {
         name: "depot_tools_presubmit"
       }
     }
   }
 }