Clean up Xlib viewer

Clean up Xlib viewer
* Make event handling closer to GLFW's
* Fix Vulkan refreshing

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2226413002

Committed: https://skia.googlesource.com/skia/+/8c67ebe4c48028635e7fe34542344e0ca7006b23

[jvanverth1, 2016-08-09 19:57:13]

Description was changed from

==========
Clean up Xlib viewer
* Make event handling closer to GLFW's
* Fix Vulkan refreshing
* Add backend switching

BUG=skia:
==========

to

==========
Clean up Xlib viewer
* Make event handling closer to GLFW's
* Fix Vulkan refreshing
* Add backend switching

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2226413002
==========

[jvanverth1, 2016-08-09 19:59:38]

Description was changed from

==========
Clean up Xlib viewer
* Make event handling closer to GLFW's
* Fix Vulkan refreshing
* Add backend switching

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2226413002
==========

to

==========
Clean up Xlib viewer
* Make event handling closer to GLFW's
* Fix Vulkan refreshing

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2226413002
==========

[jvanverth1, 2016-08-09 19:59:38]

jvanverth@google.com changed reviewers:
+ bsalomon@google.com, e@evanmorikawa.com

[jvanverth1, 2016-08-09 20:00:01]

jvanverth@google.com changed reviewers:
+ egdaniel@google.com
- e@evanmorikawa.com

[bsalomon, 2016-08-09 20:09:11]

lgtm

[jvanverth1, 2016-08-10 13:23:39]

The CQ bit was checked by jvanverth@google.com

[commit-bot: I haz the power, 2016-08-10 13:23:52]

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 13:28:16]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-08-10 13:28:18]

Try jobs failed on following builders:
  Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-Shared-Trybot on
master.client.skia (JOB_FAILED,
http://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2...)

[jvanverth1, 2016-08-11 13:42:13]

The CQ bit was checked by jvanverth@google.com

[jvanverth1, 2016-08-11 13:42:13]

The patchset sent to the CQ was uploaded after l-g-t-m from bsalomon@google.com
Link to the patchset: https://codereview.chromium.org/2226413002/#ps60001
(title: "Fix non-vulkan build")

[commit-bot: I haz the power, 2016-08-11 13:42:22]

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, 2016-08-11 14:03:10]

Description was changed from

==========
Clean up Xlib viewer
* Make event handling closer to GLFW's
* Fix Vulkan refreshing

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2226413002
==========

to

==========
Clean up Xlib viewer
* Make event handling closer to GLFW's
* Fix Vulkan refreshing

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2226413002

Committed:
https://skia.googlesource.com/skia/+/8c67ebe4c48028635e7fe34542344e0ca7006b23
==========

[commit-bot: I haz the power, 2016-08-11 14:03:11]

Committed patchset #4 (id:60001) as
https://skia.googlesource.com/skia/+/8c67ebe4c48028635e7fe34542344e0ca7006b23