commit 4538080ac41577a3e48cd0b07eaab634e47ffe28
author Wojciech Dzierżanowski <wdzierzanowski@opera.com> Mon Apr 29 14:50:32 2019
committer Commit Bot <commit-bot@chromium.org> Mon Apr 29 14:50:32 2019
tree 24a5611ce306de78c7a48ae0cc3793a9f9a9bab1
parent fe39afc601bd4e02df736b219f9c30069c564394

Postpone binding of mojom::DataReductionProxy

Each Web Worker runs on a separate worker thread, and each worker has an
associated URLLoaderThrottleProvider.  When spawning a nested worker,
the outer worker's throttle provider is cloned on the outer worker's
thread and then used on the inner worker's thread.

To accomodate this scenario:

 - Postpone the creation of DataReductionProxyThrottleManager until a
   moment when we are running on the target thread.  This makes sure
   the DataReductionProxyThrottleConfigObserver binding is used on the
   same thread that it's created on.

 - Postpone the binding of DataReductionProxy until a moment when we
   are running on the target thread.  DataReductionProxyPtrInfo
   serves as a holder of the interface request that can move between
   threads.

Bug: 942011
Change-Id: Ieed17fb499bbcb0545e3e0323f751c1ea55a33d5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1565873
Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Commit-Queue: Wojciech Dzierżanowski <wdzierzanowski@opera.com>
Cr-Commit-Position: refs/heads/master@{#654846}