Follow-up fixes to changing namespace gfx to gl.

Follow-up fixes to changing namespace gfx to gl.

A follow up to changing the namespace gfx to namespace gl for all
classes in ui/gl/* that fixes some code style issues.
- Replace unnecessary fully qualified names, for example gl::ClassName
  used inside namespace gl can just be ClassName.
- Fix namespace comments.
- Other formatting.

BUG=none

Committed: https://crrev.com/fd721905a16823458cf0e8cfaa7f3e31710b6b29
Cr-Commit-Position: refs/heads/master@{#396480}

[kylechar, 2016-05-26 16:00:14]

kylechar@chromium.org changed reviewers:
+ piman@chromium.org

[piman, 2016-05-26 22:16:05]

LGTM, thanks!

[kylechar, 2016-05-27 12:27:07]

The CQ bit was checked by kylechar@chromium.org

[kylechar, 2016-05-27 12:27:07]

The patchset sent to the CQ was uploaded after l-g-t-m from piman@chromium.org
Link to the patchset: https://codereview.chromium.org/2014223002/#ps20001
(title: "Rebase.")

[commit-bot: I haz the power, 2016-05-27 12:27:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2014223002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2014223002/20001

[commit-bot: I haz the power, 2016-05-27 16:00:37]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-05-27 16:02:32]

Description was changed from

==========
Follow-up fixes to changing namespace gfx to gl.

A follow up to changing the namespace gfx to namespace gl for all
classes in ui/gl/* that fixes some code style issues.
- Replace unnecessary fully qualified names, for example gl::ClassName
  used inside namespace gl can just be ClassName.
- Fix namespace comments.
- Other formatting.

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

to

==========
Follow-up fixes to changing namespace gfx to gl.

A follow up to changing the namespace gfx to namespace gl for all
classes in ui/gl/* that fixes some code style issues.
- Replace unnecessary fully qualified names, for example gl::ClassName
  used inside namespace gl can just be ClassName.
- Fix namespace comments.
- Other formatting.

BUG=none

Committed: https://crrev.com/fd721905a16823458cf0e8cfaa7f3e31710b6b29
Cr-Commit-Position: refs/heads/master@{#396480}
==========

[commit-bot: I haz the power, 2016-05-27 16:02:33]

Patchset 2 (id:??) landed as
https://crrev.com/fd721905a16823458cf0e8cfaa7f3e31710b6b29
Cr-Commit-Position: refs/heads/master@{#396480}