The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a4b35d746e8582e457a14e3ca305dbf05d8f0fec

commit a4b35d746e8582e457a14e3ca305dbf05d8f0fec
Author: Farah Charab <farahcharab@google.com>
Date: Tue Jul 17 22:45:57 2018

Scheduler: Infrastructure to support using resource fetch priorities.

Provide support for experimenting with using resource fetch priorities
for resource loading tasks in blink.

Bug: 860545
Change-Id: I064f287ea2c96d67f532ba7dc03abb45875947c3
Reviewed-on: https://chromium-review.googlesource.com/1128857
Commit-Queue: Farah Charab <farahcharab@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Alex Clarke <alexclarke@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Alexander Timin <altimin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575821}
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/public/BUILD.gn
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/public/platform/scheduler/DEPS
[add] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/public/platform/scheduler/web_resource_loading_task_runner_handle.h
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/public/platform/task_type.h
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/core/frame/local_frame.cc
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/BUILD.gn
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/child/features.h
[add] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/common/unprioritized_resource_loading_task_runner_handle.cc
[add] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/common/unprioritized_resource_loading_task_runner_handle.h
[add] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/common/web_resource_loading_task_runner_handle.cc
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl.cc
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl.h
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl_unittest.cc
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/main_thread/main_thread_scheduler_impl.cc
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/main_thread/main_thread_scheduler_impl.h
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/main_thread/page_scheduler_impl.cc
[add] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/main_thread/resource_loading_task_runner_handle_impl.cc
[add] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/main_thread/resource_loading_task_runner_handle_impl.h
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/public/frame_scheduler.h
[modify] https://crrev.com/a4b35d746e8582e457a14e3ca305dbf05d8f0fec/third_party/blink/renderer/platform/scheduler/worker/worker_scheduler.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/abac20b43c3c938f3c8ac35060d16fd3de86c0bb

commit abac20b43c3c938f3c8ac35060d16fd3de86c0bb
Author: Farah Charab <farahcharab@google.com>
Date: Wed Jul 18 14:04:35 2018

Scheduler: Use net to blink priority map passed by finch parameters.

Use the map passed in the parameters of the resource fetch priority
finch study to schedule resource loading tasks on Blink.

Bug: 860545
Change-Id: I156afc89a347cc26816070679d2a8a568217720a
Reviewed-on: https://chromium-review.googlesource.com/1140155
Reviewed-by: Alexander Timin <altimin@chromium.org>
Commit-Queue: Farah Charab <farahcharab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576030}
[modify] https://crrev.com/abac20b43c3c938f3c8ac35060d16fd3de86c0bb/third_party/blink/renderer/platform/scheduler/main_thread/DEPS
[modify] https://crrev.com/abac20b43c3c938f3c8ac35060d16fd3de86c0bb/third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl.cc
[modify] https://crrev.com/abac20b43c3c938f3c8ac35060d16fd3de86c0bb/third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl.h
[modify] https://crrev.com/abac20b43c3c938f3c8ac35060d16fd3de86c0bb/third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl_unittest.cc
[modify] https://crrev.com/abac20b43c3c938f3c8ac35060d16fd3de86c0bb/third_party/blink/renderer/platform/scheduler/main_thread/main_thread_scheduler_impl.cc
[modify] https://crrev.com/abac20b43c3c938f3c8ac35060d16fd3de86c0bb/third_party/blink/renderer/platform/scheduler/main_thread/main_thread_scheduler_impl.h
[modify] https://crrev.com/abac20b43c3c938f3c8ac35060d16fd3de86c0bb/third_party/blink/renderer/platform/scheduler/main_thread/resource_loading_task_runner_handle_impl.cc

This is a non-risky internal scheduling change which is not user-facing and with no UX/privacy/security implications.

We would like to merge this CL https://chromium-review.googlesource.com/c/chromium/src/+/1138079 to Beta's branch. It integrates the CL linked in this bug (which was submitted before Beta's freeze) into our existing code. It has been submitted since Monday, and no Crashes have been reported. 

This bug requires manual review: DEPS changes referenced in bugdroid comments.
Please contact the milestone owner if you have questions.
Owners: amineer@(Android), kariahda@(iOS), cindyb@(ChromeOS), govind@(Desktop)

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Pls apply appropriate OSs label. Thank you.

Approving merge to M69 branch 3497 for this CL https://chromium-review.googlesource.com/c/chromium/src/+/1138079  based on comment #5. Pls merge ASAP. Thank you.

Please merge your change to M69 branch 3497 by 4:00 PM PT today, so we can pick it up for next week last M69 Dev release. Thank you.

Please merge your change to M69 branch 3497 by 4:00 PM PT today, so we can pick it up for next week LAST M69 Dev release before Beta promotion. Thank you.

It's merged, but the bug was missing from the original patch, so no notification for the merge as well.

https://chromium-review.googlesource.com/c/chromium/src/+/1151990