Add a null check to ChromeActivity#onStartWithNative()

Add a null check to ChromeActivity#onStartWithNative()

Check for getActivityTab() != null before calling getActivityTab().isLoading()

BUG=606525
Committed: https://crrev.com/738ae75b8582befaf0f0cebaa45d695163f37d9f
Cr-Commit-Position: refs/heads/master@{#389634}

[Theresa, 2016-04-25 23:28:22]

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

[Theresa, 2016-04-25 23:28:22]

ptal

[Ted C, 2016-04-25 23:36:08]

lgtm

[Theresa, 2016-04-25 23:38:33]

The CQ bit was checked by twellington@chromium.org

[commit-bot: I haz the power, 2016-04-25 23:39:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1921613004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1921613004/1

[commit-bot: I haz the power, 2016-04-26 00:28:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-26 00:29:12]

Description was changed from

==========
Add a null check to ChromeActivity#onStartWithNative()

Check for getActivityTab() != null before calling getActivityTab().isLoading()

BUG=606525
==========

to

==========
Add a null check to ChromeActivity#onStartWithNative()

Check for getActivityTab() != null before calling getActivityTab().isLoading()

BUG=606525

Committed: https://crrev.com/738ae75b8582befaf0f0cebaa45d695163f37d9f
Cr-Commit-Position: refs/heads/master@{#389634}
==========

[commit-bot: I haz the power, 2016-04-26 00:29:13]

Patchset 1 (id:??) landed as
https://crrev.com/738ae75b8582befaf0f0cebaa45d695163f37d9f
Cr-Commit-Position: refs/heads/master@{#389634}