diff --git b/third_party/dawn/src/utils/BUILD.gn a/third_party/dawn/src/utils/BUILD.gn
index b9f0be693eea5aacdac6f7940642a29e0205c7a9..ed7ad3b6d3de1336c7c89cb18d4b6e4359205417 100644
--- b/third_party/dawn/src/utils/BUILD.gn
+++ a/third_party/dawn/src/utils/BUILD.gn
@@ -218,8 +218,6 @@ config("dawn_warnings") {
       # the analysis pass.
       "-Wno-lifetime-safety",
       "-Wno-lifetime-safety-all",
-      "-Xclang=-fno-lifetime-safety-inference",
-      "-Xclang=-fno-experimental-lifetime-safety-tu-analysis",
     ]
 
     # P3. Checks that could be nice but probably don't help with hardening.