Fix 'ordered comparison between pointer and zero' errors

Fix 'ordered comparison between pointer and zero' errors

The latest version of Clang rejects direct relational
comparison between null pointer constants and pointers.

BUG=none
TBR=justinlin

Committed: https://crrev.com/ffdb0bdf9bb5304d386a327ba30bb99fb49281d1
Cr-Commit-Position: refs/heads/master@{#427093}

[hans, 2016-10-24 16:23:48]

Description was changed from

==========
Fix 'ordered comparison between pointer and zero' errors

BUG=none
==========

to

==========
Fix 'ordered comparison between pointer and zero' errors

The latest version of Clang rejects direct relational
comparison between null pointer constants and pointers.

BUG=none
TBR=justinlin
==========

[hans, 2016-10-24 16:23:48]

hans@chromium.org changed reviewers:
+ justinlin@chromium.org

[hans, 2016-10-24 16:23:54]

The CQ bit was checked by hans@chromium.org

[commit-bot: I haz the power, 2016-10-24 16:24:07]

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, 2016-10-24 17:36:50]

Description was changed from

==========
Fix 'ordered comparison between pointer and zero' errors

The latest version of Clang rejects direct relational
comparison between null pointer constants and pointers.

BUG=none
TBR=justinlin
==========

to

==========
Fix 'ordered comparison between pointer and zero' errors

The latest version of Clang rejects direct relational
comparison between null pointer constants and pointers.

BUG=none
TBR=justinlin
==========

[commit-bot: I haz the power, 2016-10-24 17:36:50]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-24 17:50:43]

Description was changed from

==========
Fix 'ordered comparison between pointer and zero' errors

The latest version of Clang rejects direct relational
comparison between null pointer constants and pointers.

BUG=none
TBR=justinlin
==========

to

==========
Fix 'ordered comparison between pointer and zero' errors

The latest version of Clang rejects direct relational
comparison between null pointer constants and pointers.

BUG=none
TBR=justinlin

Committed: https://crrev.com/ffdb0bdf9bb5304d386a327ba30bb99fb49281d1
Cr-Commit-Position: refs/heads/master@{#427093}
==========

[commit-bot: I haz the power, 2016-10-24 17:50:44]

Patchset 1 (id:??) landed as
https://crrev.com/ffdb0bdf9bb5304d386a327ba30bb99fb49281d1
Cr-Commit-Position: refs/heads/master@{#427093}