Improve memory usage of safe browsing navigation oberver manager.

Improve memory usage of safe browsing navigation oberver manager.

(And add a TODO for PPAPI download attribution)

BUG=676691
Committed: https://crrev.com/1dbe99496e0bc1ef47989bfd5eb99ae85470d4ea
Cr-Commit-Position: refs/heads/master@{#440860}

[Jialiu Lin, 2016-12-27 23:44:57]

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

[commit-bot: I haz the power, 2016-12-27 23:45:10]

Dry run: 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, 2016-12-28 00:34:53]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-28 00:34:54]

Dry run: This issue passed the CQ dry run.

[Jialiu Lin, 2016-12-28 00:45:40]

jialiul@chromium.org changed reviewers:
+ manoranjanr@chromium.org

[Jialiu Lin, 2016-12-28 00:45:40]

Hi manoranjanr@, 
All my other teammates  are OOO during the holidays. Fortunately, I am on the
OWNER list.  So could you take a look this tiny CL that aims to mitigate the
crash in SafeBrowsingNavigationObserverManager. 

Thanks!

[manoranjanr, 2016-12-28 01:02:31]

On 2016/12/28 00:45:40, Jialiu Lin wrote:
> Hi manoranjanr@, 
> All my other teammates  are OOO during the holidays. Fortunately, I am on the
> OWNER list.  So could you take a look this tiny CL that aims to mitigate the
> crash in SafeBrowsingNavigationObserverManager. 
> 
> Thanks!

LGTM!

[Jialiu Lin, 2016-12-28 17:15:56]

The CQ bit was checked by jialiul@chromium.org

[commit-bot: I haz the power, 2016-12-28 17:16:09]

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, 2016-12-28 17:20:08]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1482945356794720, "parent_rev":
"569f823de1abfbcacf88796d15ba1124019b9875", "commit_rev":
"90acc77bbba89df8fe4aec7a8ac0560d6ed8164a"}

[commit-bot: I haz the power, 2016-12-28 17:20:35]

Description was changed from

==========
Improve memory usage of safe browsing navigation oberver manager.

(And add a TODO for PPAPI download attribution)

BUG=676691
==========

to

==========
Improve memory usage of safe browsing navigation oberver manager.

(And add a TODO for PPAPI download attribution)

BUG=676691

Review-Url: https://codereview.chromium.org/2606843002
==========

[commit-bot: I haz the power, 2016-12-28 17:20:36]

Committed patchset #1 (id:1)

[Jialiu Lin, 2016-12-28 17:26:28]

Description was changed from

==========
Improve memory usage of safe browsing navigation oberver manager.

(And add a TODO for PPAPI download attribution)

BUG=676691

Review-Url: https://codereview.chromium.org/2606843002
==========

to

==========
Improve memory usage of safe browsing navigation oberver manager.

(And add a TODO for PPAPI download attribution)

BUG=676675

Review-Url: https://codereview.chromium.org/2606843002
==========

[commit-bot: I haz the power, 2017-01-02 15:49:20]

Description was changed from

==========
Improve memory usage of safe browsing navigation oberver manager.

(And add a TODO for PPAPI download attribution)

BUG=676675

Review-Url: https://codereview.chromium.org/2606843002
==========

to

==========
Improve memory usage of safe browsing navigation oberver manager.

(And add a TODO for PPAPI download attribution)

BUG=676691

Committed: https://crrev.com/1dbe99496e0bc1ef47989bfd5eb99ae85470d4ea
Cr-Commit-Position: refs/heads/master@{#440860}
==========

[commit-bot: I haz the power, 2017-01-02 15:49:21]

Patchset 1 (id:??) landed as
https://crrev.com/1dbe99496e0bc1ef47989bfd5eb99ae85470d4ea
Cr-Commit-Position: refs/heads/master@{#440860}