Move default trybots configuration to CQ config.

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: "webrtc"
 cq_status_url: "https://chromium-cq-status.appspot.com"
 commit_burst_delay: 60
 max_commit_burst: 1
 hide_ref_in_committed_msg: true
 target_ref: "refs/pending/heads/master"
 
 rietveld {
   url: "https://codereview.webrtc.org"
 }
 
 
 verifiers {
   reviewer_lgtm {
     committer_list: "webrtc"
   }
 
   tree_status {
     tree_status_url: "https://webrtc-status.appspot.com"
   }
 
   try_job {
     buckets {
       name: "tryserver.webrtc"
+      builders { name: "android" }
+      builders { name: "android_arm64_rel" }
+      builders { name: "android_clang" }
+      builders { name: "android_gn" }
+      builders { name: "android_gn_rel" }
+      builders { name: "android_rel" }
+      builders { name: "ios" }
+      builders { name: "ios_arm64" }
+      builders { name: "ios_arm64_rel" }
+      builders { name: "ios_rel" }
+      builders { name: "ios32_sim" }
+      builders { name: "ios64_sim" }
       builders { name: "linux" }
+      builders { name: "linux_asan" }
+      builders { name: "linux_baremetal" }
+      builders { name: "linux_gn" }
+      builders { name: "linux_gn_rel" }
+      builders { name: "linux_msan" }
+      builders { name: "linux_rel" }
+      builders { name: "linux_tsan2" }
+      builders { name: "mac" }
+      builders { name: "mac_asan" }
+      builders { name: "mac_baremetal" }
+      builders { name: "mac_rel" }
+      builders { name: "mac_x64" }
+      builders { name: "mac_x64_gn" }
+      builders { name: "mac_x64_gn_rel" }
+      builders { name: "mac_x64_rel" }
+      builders { name: "win" }
+      builders { name: "win_baremetal" }
+      builders { name: "win_rel" }
+      builders { name: "win_x64_gn" }
+      builders { name: "win_x64_gn_rel" }
+      builders { name: "win_x64_rel" }
+      builders { name: "win_drmemory_light" }
     }
   }
 }