Cleanup namespace usage in platform/graphics/[G-S]*

Cleanup namespace usage in platform/graphics/[G-S]*

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=180267

[heeyoun.lee, 2014-08-14 08:58:06]

PTAL

[tkent, 2014-08-14 09:11:04]

The CQ bit was checked by tkent@chromium.org

[tkent, 2014-08-14 09:11:05]

lgtm

[commit-bot: I haz the power, 2014-08-14 09:12:07]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/heeyoun.lee@samsung.com/476683002/1

[commit-bot: I haz the power, 2014-08-14 13:13:58]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_blink_dbg on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_dbg/builds/2...)
  linux_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/2...)
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/22758)

[commit-bot: I haz the power, 2014-08-14 15:18:45]

Committed patchset #1 (1) as 180267