Add more cases of box-sizing change

Add more cases of box-sizing change

- Add cases of changing box-sizing and border at the same time while
  keeping the actual size;
- Add cases of changing box-sizing and padding at the same time while
  keeping the actual size;
- Add cases changing box-sizing from content-box to border-box.

BUG=375876
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=176783

[Xianzhu, 2014-06-23 18:49:08]

This is to Re ojan@'s (OOO for now) suggestion in
https://codereview.chromium.org/348493003/.

Note that the repaint for box-sizing-padding-keeping-size.html will be gone with
https://codereview.chromium.org/340323002/.

[esprehn, 2014-06-23 18:52:17]

lgtm, I assume you verified they do actually repaint properly?

[Xianzhu, 2014-06-23 18:53:27]

On 2014/06/23 18:52:17, esprehn wrote:
> lgtm, I assume you verified they do actually repaint properly?

Yes :)

[Xianzhu, 2014-06-23 18:54:19]

The CQ bit was checked by wangxianzhu@chromium.org

[commit-bot: I haz the power, 2014-06-23 18:54:29]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/wangxianzhu@chromium.org/350043003/1

[commit-bot: I haz the power, 2014-06-23 20:10:07]

Change committed as 176783