Add more error printing to know why command buffer lib failed to load.

Add more error printing to know why command buffer lib failed to load.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2233073002

Committed: https://skia.googlesource.com/skia/+/80e38ac117371129df2eb27fe674c7ca84256971

[bsalomon, 2016-08-10 18:43:47]

Description was changed from

==========
Add more error printing to know why command buffer lib failed to load.
==========

to

==========
Add more error printing to know why command buffer lib failed to load.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2233073002
==========

[bsalomon, 2016-08-10 18:49:10]

bsalomon@google.com changed reviewers:
+ robertphillips@google.com

[robertphillips, 2016-08-10 18:56:17]

lgtm

[bsalomon, 2016-08-10 19:01:19]

The CQ bit was checked by bsalomon@google.com

[commit-bot: I haz the power, 2016-08-10 19:01:21]

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, 2016-08-10 19:26:02]

Description was changed from

==========
Add more error printing to know why command buffer lib failed to load.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2233073002
==========

to

==========
Add more error printing to know why command buffer lib failed to load.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2233073002

Committed:
https://skia.googlesource.com/skia/+/80e38ac117371129df2eb27fe674c7ca84256971
==========

[commit-bot: I haz the power, 2016-08-10 19:26:03]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/80e38ac117371129df2eb27fe674c7ca84256971