Add proper null checks to android's find in page UI behavior.

Add proper null checks to android's find in page UI behavior.

Pending events in android can occur after the native find in page
has been destroyed, so ensure the bridge is non null before trying
to act on it.

This adds asserts to places where the bridge is not allowed to
be null either.

BUG=489253
Committed: https://crrev.com/75a8a3fb3fadade6287cf19325419da72de0b99d
Cr-Commit-Position: refs/heads/master@{#371056}

[Ted C, 2016-01-22 21:01:13]

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

[Ted C, 2016-01-22 21:01:13]

PTAL

[Theresa, 2016-01-22 21:14:01]

lgtm

[Ted C, 2016-01-22 21:17:01]

The CQ bit was checked by tedchoc@chromium.org

[commit-bot: I haz the power, 2016-01-22 21:17:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1628513002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1628513002/1

[commit-bot: I haz the power, 2016-01-22 22:18:30]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-22 22:19:25]

Description was changed from

==========
Add proper null checks to android's find in page UI behavior.

Pending events in android can occur after the native find in page
has been destroyed, so ensure the bridge is non null before trying
to act on it.

This adds asserts to places where the bridge is not allowed to
be null either.

BUG=489253
==========

to

==========
Add proper null checks to android's find in page UI behavior.

Pending events in android can occur after the native find in page
has been destroyed, so ensure the bridge is non null before trying
to act on it.

This adds asserts to places where the bridge is not allowed to
be null either.

BUG=489253

Committed: https://crrev.com/75a8a3fb3fadade6287cf19325419da72de0b99d
Cr-Commit-Position: refs/heads/master@{#371056}
==========

[commit-bot: I haz the power, 2016-01-22 22:19:25]

Patchset 1 (id:??) landed as
https://crrev.com/75a8a3fb3fadade6287cf19325419da72de0b99d
Cr-Commit-Position: refs/heads/master@{#371056}