Add the text direction to the WebScrollbar interface.

Add the text direction to the WebScrollbar interface.

When drawing thinning scrollbars, we'll need this information.
The text direction is always LTR for horizontal scrollbars.

BUG=None
TEST=None

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=156888

[jamesr, 2013-08-28 23:11:41]

It feels a bit awkward to use text direction to talk about scrollbars, since
scrollbars aren't text, but I don't think we have a better 'directionality' type
to use.

lgtm

[tony, 2013-08-28 23:15:01]

On 2013/08/28 23:11:41, jamesr wrote:
> It feels a bit awkward to use text direction to talk about scrollbars, since
> scrollbars aren't text, but I don't think we have a better 'directionality'
type
> to use.

Yeah, it's confusing because there's already a ScrollDirection enum.

Thanks!

[commit-bot: I haz the power, 2013-08-28 23:15:26]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tony@chromium.org/23734003/1

[commit-bot: I haz the power, 2013-08-29 00:21:18]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tony@chromium.org/23734003/13001

[commit-bot: I haz the power, 2013-08-29 01:58:54]

Change committed as 156888