Revert of Linux Aura Task Manager Frame Buttons Misaligned

Revert of Linux Aura Task Manager Frame Buttons Misaligned (https://codereview.chromium.org/240163006/)

Reason for revert:
Suspected of being responsible for ash_unittests failing on Linux ChromiumOS Tests(1):
http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%281%29/builds/43114


Original issue's description:
> Linux Aura Task Manager Frame Buttons Misaligned
> 
> The task manager is a CustomFrameView. This had the logic for its button
> placement hardcoded. The view now adds itself as a listener for button
> configuration changes on linux. For other systems it falls back on a
> default set that matches the current (minimize, maximize, close) order.
> 
> The layout of the buttons has changed to consult this order definition.
> 
> Loading the assets for the close button has been moved out of layout.
> ResourceBundle only loads the asset once, so this can be done during
> initialization.
> 
> The top padding for the buttons has been updated to provide more spacing. It now fits the rest of the padding in the class.
> 
> TEST=CustomFrameViewTest
> BUG=351917
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=269597

NOTREECHECKS=true
NOTRY=true
BUG=351917
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=269636

[mdempsky, 2014-05-10 20:57:37]

Created Revert of Linux Aura Task Manager Frame Buttons Misaligned

[commit-bot: I haz the power, 2014-05-10 20:58:49]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mdempsky@chromium.org/276173002/1

[commit-bot: I haz the power, 2014-05-10 20:58:50]

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

[commit-bot: I haz the power, 2014-05-10 20:58:51]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[varkha, 2014-05-10 21:00:14]

lgtm.

[mdempsky, 2014-05-10 21:00:41]

The CQ bit was checked by mdempsky@chromium.org

[commit-bot: I haz the power, 2014-05-10 21:01:03]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mdempsky@chromium.org/276173002/1

[commit-bot: I haz the power, 2014-05-10 21:02:40]

Change committed as 269636