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The spec changed AdvertisingData to an event. The low level support is still missing.
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
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- [X] There are tests for these changes
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Source-Repo: https://github.com/servo/servo
Source-Revision: eb1bd596822c7e24589fdc08c4f41c69c4207351
