Re-enable webaudio_test.ts
Re-enable webaudio_test.ts

I suspect this is the same issue as with the autocompletion tests.

Bug: 1086519
Change-Id: If1a4d9cc4872bb3603f3fc12f9bdd1e3eb2b3219
Signed-off-by: Victor Porof <3d15ea6ca233e160c8cf7f042bddcb5a716dfa4f@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3598875
Reviewed-by: Benedikt Meurer <024a1e0af501338d11c3b837c6193d11c140d792@chromium.org>

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