Test CL to demonstrate GN + hermetic toolchain

third_party/crashpad/crashpad/util/mach/mig.py

Index: third_party/crashpad/crashpad/util/mach/mig.py
diff --git a/third_party/crashpad/crashpad/util/mach/mig.py b/third_party/crashpad/crashpad/util/mach/mig.py
index 2d248854d59ce5f171e6f69262bd4871631bc330..9c48c128643d2ab8427162b0b7db701a5c203a80 100755
--- a/third_party/crashpad/crashpad/util/mach/mig.py
+++ b/third_party/crashpad/crashpad/util/mach/mig.py
@@ -15,6 +15,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import os
 import re
 import subprocess
 import sys
@@ -106,8 +107,9 @@ extern "C" {
   file.close()
 
 def main(args):
-  assert len(args) == 5
-  (defs_file, user_c, server_c, user_h, server_h) = args
+  assert len(args) == 6
+  (defs_file, user_c, server_c, user_h, server_h, developer_dir) = args
+  os.environ['DEVELOPER_DIR'] = developer_dir
   subprocess.check_call(['mig',
                          '-user', user_c,
                          '-server', server_c,