cr-buildbucket-dev: add findit mixin

cr-buildbucket-dev.cfg

 # Defines buckets on cr-buildbucket.appspot.com, used by to schedule builds
 # on buildbot. In particular, CQ uses some of these buckets to schedule tryjobs.
 #
 # See http://luci-config.appspot.com/schemas/projects:buildbucket.cfg for
 # schema of this file and documentation. Also see README.md in this dir.
 #
 # Please keep this list sorted by bucket name.
 
 acl_sets {
   name: "waterfall"
@@ skipping 39 matching lines @@
 builder_mixins {
   name: "mac"
   dimensions: "os:Mac"
 }
 
 builder_mixins {
   name: "win"
   dimensions: "os:Windows"
 }
 
+builder_mixins {
+  name: "findit"
+  # This category is meant for Findit to trigger tryjobs on.
+  category: "Chromium Variable"
+  recipe {
+    name: "findit/chromium/compile"
+  }
+}
+
 buckets {
   name: "luci.chromium.try"
 
   acl_sets: "tryserver"
 
   swarming {
     hostname: "chromium-swarm-dev.appspot.com"
     url_format: "https://luci-milo-dev.appspot.com/swarming/task/{task_id}"
     task_template_canary_percentage { value: 100 }
 
@@ skipping 143 matching lines @@
     builders { mixins: "win" name: "LUCI win_mojo" }
     builders { mixins: "win" name: "LUCI win_nacl_sdk" }
     builders { mixins: "win" name: "LUCI win_nacl_sdk_build" }
     builders { mixins: "win" name: "LUCI win_optional_gpu_tests_rel" }
     builders { mixins: "win" name: "LUCI win_pgo" }
     builders { mixins: "win" name: "LUCI win_upload_clang" }
     builders { mixins: "win" name: "LUCI win_x64_archive" }
     builders { mixins: "win" name: "LUCI win_x64_chromium_variable_builder" }
   }
 }