checkout mac on mac

.circleci/build_config.yml

@@ -1610,12 +1610,11 @@ jobs:
           persist-checkout: true
 
   mac-checkout:
-    executor: linux-docker
+    executor: macos
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-mac-large
       <<: *env-testing-build
       <<: *env-macos-build
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
     steps:
       - electron-build:
           persist: false
@@ -1625,12 +1624,11 @@ jobs:
           restore-src-cache: false
 
   mac-checkout-for-workspace:
-    executor: linux-docker
+    executor: macos
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-mac-large
       <<: *env-testing-build
       <<: *env-macos-build
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
     steps:
       - electron-build:
           persist: false
@@ -1639,12 +1637,11 @@ jobs:
           persist-checkout: true
 
   mac-make-src-cache:
-    executor: linux-docker
+    executor: macos
     environment:
-      <<: *env-linux-2xlarge
+      <<: *env-mac-large
       <<: *env-testing-build
       <<: *env-macos-build
-      GCLIENT_EXTRA_ARGS: '--custom-var=checkout_mac=True --custom-var=host_os=mac'
     steps:
       - electron-build:
           persist: false