Fix race between onFlowIsKnown and native init in FRE code.

Fix race between onFlowIsKnown and native init in FRE code.

As a result of my previous changes to this code, there appeared
a race condition where finishNativeInitialization() could be
called before onFlowIsKnown() is called. This would either cause
sign-in & data reduction pages to simply not be created or
could also cause a crash if mFreProperties were restored from
a previous run.

This CL fixes both of the above issues. If native init happens
before onFlowIsKnown, the code will defer creating the extra
pages & skipping them to onFlowIsKnown() in the future - which
actually matches to how the code was structured originally.

BUG=683048
Review-Url: https://codereview.chromium.org/2647763006
Cr-Commit-Position: refs/heads/master@{#445134}
Committed: https://chromium.googlesource.com/chromium/src/+/3a70e43d08a3a55b46d62f3e9f8e249e7c8a393b

[Alexei Svitkine (slow), 2017-01-20 18:55:48]

The CQ bit was checked by asvitkine@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-01-20 18:56:11]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Alexei Svitkine (slow), 2017-01-20 19:00:55]

The CQ bit was checked by asvitkine@chromium.org to run a CQ dry run

[Alexei Svitkine (slow), 2017-01-20 19:01:02]

Patchset #1 (id:1) has been deleted

[commit-bot: I haz the power, 2017-01-20 19:01:13]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Alexei Svitkine (slow), 2017-01-20 19:01:24]

asvitkine@chromium.org changed reviewers:
+ tedchoc@chromium.org

[Ted C, 2017-01-20 19:28:41]

lgtm

[Alexei Svitkine (slow), 2017-01-20 19:30:03]

The CQ bit was unchecked by asvitkine@chromium.org

[Alexei Svitkine (slow), 2017-01-20 19:30:09]

The CQ bit was checked by asvitkine@chromium.org

[commit-bot: I haz the power, 2017-01-20 19:30:43]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-20 19:40:27]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1484940609311260,
"parent_rev": "8f970b126061dde068c576e2a6add0e3ba2d8275", "commit_rev":
"3a70e43d08a3a55b46d62f3e9f8e249e7c8a393b"}

[commit-bot: I haz the power, 2017-01-20 19:40:57]

Description was changed from

==========
Fix race between onFlowIsKnown and native init in FRE code.

As a result of my previous changes to this code, there appeared
a race condition where finishNativeInitialization() could be
called before onFlowIsKnown() is called. This would either cause
sign-in & data reduction pages to simply not be created or
could also cause a crash if mFreProperties were restored from
a previous run.

This CL fixes both of the above issues. If native init happens
before onFlowIsKnown, the code will defer creating the extra
pages & skipping them to onFlowIsKnown() in the future - which
actually matches to how the code was structured originally.

BUG=683048
==========

to

==========
Fix race between onFlowIsKnown and native init in FRE code.

As a result of my previous changes to this code, there appeared
a race condition where finishNativeInitialization() could be
called before onFlowIsKnown() is called. This would either cause
sign-in & data reduction pages to simply not be created or
could also cause a crash if mFreProperties were restored from
a previous run.

This CL fixes both of the above issues. If native init happens
before onFlowIsKnown, the code will defer creating the extra
pages & skipping them to onFlowIsKnown() in the future - which
actually matches to how the code was structured originally.

BUG=683048

Review-Url: https://codereview.chromium.org/2647763006
Cr-Commit-Position: refs/heads/master@{#445134}
Committed:
https://chromium.googlesource.com/chromium/src/+/3a70e43d08a3a55b46d62f3e9f8e...
==========

[commit-bot: I haz the power, 2017-01-20 19:40:58]

Committed patchset #1 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/3a70e43d08a3a55b46d62f3e9f8e...