[Offline pages] Ensuring native init when OBT run though JobScheduler

[Offline pages] Ensuring native init when OBT run though JobScheduler

When OfflineBackgroundTask is scheduled and run through JobScheduler
we are currently experiencing an assert on debug builds (and this
should lead to NPE on release builds). This patch fixes the issue and
is intended to be handling it in the short term, until
BackgroundTaskScheduler provides a proper support for that scenario.

BUG=704990
R=nyquist@chromium.org

Review-Url: https://codereview.chromium.org/2773843003
Cr-Commit-Position: refs/heads/master@{#459525}
(cherry picked from commit b382956014fb295322ee15b14f72712b93b174aa)

Review-Url: https://codereview.chromium.org/2774193002 .
Cr-Commit-Position: refs/branch-heads/3029@{#420}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/88fe890f426fc5bc77b7b766f78290b73924b542

[fgorski, 2017-03-26 03:51:58]

Description was changed from

==========
[Offline pages] Ensuring native init when OBT run though JobScheduler

When OfflineBackgroundTask is scheduled and run through JobScheduler
we are currently experiencing an assert on debug builds (and this
should lead to NPE on release builds). This patch fixes the issue and
is intended to be handling it in the short term, until
BackgroundTaskScheduler provides a proper support for that scenario.

BUG=704990
R=nyquist@chromium.org

Review-Url: https://codereview.chromium.org/2773843003
Cr-Commit-Position: refs/heads/master@{#459525}
(cherry picked from commit b382956014fb295322ee15b14f72712b93b174aa)
==========

to

==========
[Offline pages] Ensuring native init when OBT run though JobScheduler

When OfflineBackgroundTask is scheduled and run through JobScheduler
we are currently experiencing an assert on debug builds (and this
should lead to NPE on release builds). This patch fixes the issue and
is intended to be handling it in the short term, until
BackgroundTaskScheduler provides a proper support for that scenario.

BUG=704990
R=nyquist@chromium.org

Review-Url: https://codereview.chromium.org/2773843003
Cr-Commit-Position: refs/heads/master@{#459525}
(cherry picked from commit b382956014fb295322ee15b14f72712b93b174aa)

Review-Url: https://codereview.chromium.org/2774193002 .
Cr-Commit-Position: refs/branch-heads/3029@{#420}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/88fe890f426fc5bc77b7b766f782...
==========

[fgorski, 2017-03-26 03:51:59]

Committed patchset #1 (id:1) manually as
88fe890f426fc5bc77b7b766f78290b73924b542.