The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8bb71dd3df12c0658b678b68cac27d17403c97e8

commit 8bb71dd3df12c0658b678b68cac27d17403c97e8
Author: Nicolas Pena <npm@chromium.org>
Date: Thu Nov 29 19:26:30 2018

Expose PerformanceMark and PerformanceMeasure to workers

This CL exposes the PerformanceMark and PerformanceMeasure interfaces to Worker,
thus fixing the idlharness tests in performance-timeline and user-timing.

Blink-dev thread:
https://groups.google.com/a/chromium.org/forum/?utm_medium=email&utm_source=footer#!msg/blink-dev/Z3RKovFsA1s/DWt78xngAgAJ

Bug:  898791 
Change-Id: Ic4e3e8c61ac087d13ffc86e462b45ab2ddbd097f
Reviewed-on: https://chromium-review.googlesource.com/c/1351562
Reviewed-by: Yoav Weiss <yoav@yoav.ws>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612309}
[modify] https://crrev.com/8bb71dd3df12c0658b678b68cac27d17403c97e8/third_party/blink/renderer/core/timing/performance_mark.idl
[modify] https://crrev.com/8bb71dd3df12c0658b678b68cac27d17403c97e8/third_party/blink/renderer/core/timing/performance_measure.idl
[delete] https://crrev.com/43757e7714c20069a33afeeb2572380d159e5b01/third_party/blink/web_tests/external/wpt/performance-timeline/idlharness.any.serviceworker-expected.txt
[delete] https://crrev.com/43757e7714c20069a33afeeb2572380d159e5b01/third_party/blink/web_tests/external/wpt/performance-timeline/idlharness.any.sharedworker-expected.txt
[delete] https://crrev.com/43757e7714c20069a33afeeb2572380d159e5b01/third_party/blink/web_tests/external/wpt/performance-timeline/idlharness.any.worker-expected.txt
[delete] https://crrev.com/43757e7714c20069a33afeeb2572380d159e5b01/third_party/blink/web_tests/external/wpt/user-timing/idlharness.any.serviceworker-expected.txt
[delete] https://crrev.com/43757e7714c20069a33afeeb2572380d159e5b01/third_party/blink/web_tests/external/wpt/user-timing/idlharness.any.sharedworker-expected.txt
[delete] https://crrev.com/43757e7714c20069a33afeeb2572380d159e5b01/third_party/blink/web_tests/external/wpt/user-timing/idlharness.any.worker-expected.txt
[modify] https://crrev.com/8bb71dd3df12c0658b678b68cac27d17403c97e8/third_party/blink/web_tests/http/tests/serviceworker/webexposed/global-interface-listing-service-worker-expected.txt
[modify] https://crrev.com/8bb71dd3df12c0658b678b68cac27d17403c97e8/third_party/blink/web_tests/virtual/stable/http/tests/serviceworker/webexposed/global-interface-listing-service-worker-expected.txt
[modify] https://crrev.com/8bb71dd3df12c0658b678b68cac27d17403c97e8/third_party/blink/web_tests/virtual/stable/webexposed/global-interface-listing-dedicated-worker-expected.txt
[modify] https://crrev.com/8bb71dd3df12c0658b678b68cac27d17403c97e8/third_party/blink/web_tests/virtual/stable/webexposed/global-interface-listing-shared-worker-expected.txt
[modify] https://crrev.com/8bb71dd3df12c0658b678b68cac27d17403c97e8/third_party/blink/web_tests/webexposed/global-interface-listing-dedicated-worker-expected.txt
[modify] https://crrev.com/8bb71dd3df12c0658b678b68cac27d17403c97e8/third_party/blink/web_tests/webexposed/global-interface-listing-shared-worker-expected.txt

npm@ - can we close this one?

No, there's still po-observe failing. I'll take a look at it.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/45e9fe0c7ad77c910dac445afd4bf652b3c9eb4e

commit 45e9fe0c7ad77c910dac445afd4bf652b3c9eb4e
Author: Nicolas Pena <npm@chromium.org>
Date: Wed Dec 12 22:32:36 2018

[PerformanceTimeline] Do not throw error when observing invalid types

This CL uses a console warning instead of error when entryTypes is
invalid, which aligns our implementation with the spec and fixes a
test in Performance Timeline. It also removes a stray .expected file.

Bug:  898791 

Change-Id: Ie0a0eb0ab4889a062258aab0f3fd967191f1f430
Reviewed-on: https://chromium-review.googlesource.com/c/1374168
Reviewed-by: Yoav Weiss <yoavweiss@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616087}
[modify] https://crrev.com/45e9fe0c7ad77c910dac445afd4bf652b3c9eb4e/third_party/blink/renderer/core/timing/performance_observer.cc
[delete] https://crrev.com/a3311e209e39869ad5a76394d39faab91c1b99cd/third_party/blink/web_tests/external/wpt/performance-timeline/po-navigation-expected.txt
[delete] https://crrev.com/a3311e209e39869ad5a76394d39faab91c1b99cd/third_party/blink/web_tests/external/wpt/performance-timeline/po-observe.any-expected.txt
[delete] https://crrev.com/a3311e209e39869ad5a76394d39faab91c1b99cd/third_party/blink/web_tests/external/wpt/performance-timeline/po-observe.any.worker-expected.txt

Marking this as fixed because the last test left is about buffered flag, which hasn't been implemented yet and will change with the new format of observe()