[dawn] Add file exception to non inclusive list

Change-Id: I86ace5a8d874e135088acc7d0047c00ae342ca37
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/246414
Commit-Queue: Peter McNeeley <petermcneeley@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 28463b9..8895256 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -125,6 +125,7 @@
         "src/dawn/common/GPUInfo.cpp",  # External URL
         "src/dawn/common/ThreadLocal.cpp",  # External URL
         "src/dawn/native/metal/BackendMTL.mm",  # OSX Constant
+        "src/dawn/native/metal/PhysicalDeviceMTL.mm",  # OSX deprecated API
         "src/dawn/native/vulkan/SamplerVk.cpp",  # External URL
         "src/dawn/native/vulkan/TextureVk.cpp",  # External URL
         "src/tools/src/cmd/run-cts/main.go",  # Terminal type name