Check null intent when launching DownloadNotificationService

Check null intent when launching DownloadNotificationService

When onStartCommand() is called, it is possible that the intent is null.
According to the SDK page, service must take care of the null check.

BUG=587399
Committed: https://crrev.com/8728e6c1c0806f8f0a2476e4c19087d9c4b36786
Cr-Commit-Position: refs/heads/master@{#376048}

[qinmin, 2016-02-17 23:23:08]

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

[qinmin, 2016-02-17 23:23:08]

PTAL

[Ted C, 2016-02-17 23:29:17]

lgtm

[qinmin, 2016-02-17 23:29:48]

The CQ bit was checked by qinmin@chromium.org

[commit-bot: I haz the power, 2016-02-17 23:30:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1708913002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1708913002/1

[commit-bot: I haz the power, 2016-02-18 00:26:56]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-18 00:28:07]

Description was changed from

==========
Check null intent when launching DownloadNotificationService

When onStartCommand() is called, it is possible that the intent is null.
According to the SDK page, service must take care of the null check.

BUG=587399
==========

to

==========
Check null intent when launching DownloadNotificationService

When onStartCommand() is called, it is possible that the intent is null.
According to the SDK page, service must take care of the null check.

BUG=587399

Committed: https://crrev.com/8728e6c1c0806f8f0a2476e4c19087d9c4b36786
Cr-Commit-Position: refs/heads/master@{#376048}
==========

[commit-bot: I haz the power, 2016-02-18 00:28:07]

Patchset 1 (id:??) landed as
https://crrev.com/8728e6c1c0806f8f0a2476e4c19087d9c4b36786
Cr-Commit-Position: refs/heads/master@{#376048}