Inapplicable top, bottom style shouldn't affect height calculation

Inapplicable top, bottom style shouldn't affect height calculation

Require an absolute or fixed positioned containing block before
examining the containing block top and bottom style values for
contributing a non-auto height. Otherwise we'll base the decision on
inapplicable values.

|top| and |left| only applies to positioned elements:

http://www.w3.org/TR/CSS2/visuren.html#propdef-top
http://www.w3.org/TR/CSS2/visuren.html#propdef-bottom

and only contribute to the element's height (when height is auto) for
absolute and fixed positioned elements:

http://www.w3.org/TR/CSS2/visudet.html#normal-block
http://www.w3.org/TR/CSS2/visudet.html#abs-non-replaced-height

BUG=390101
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=177374

[leviw_travelin_and_unemployed, 2014-07-01 22:48:15]

lgtm

Please provide a link to the part of the relevant spec that covers this in the
description before landing.

[davve, 2014-07-02 08:19:57]

On 2014/07/01 22:48:15, leviw wrote:
> lgtm
> 
> Please provide a link to the part of the relevant spec that covers this in the
> description before landing.

Good point. Thanks for the review!

[davve, 2014-07-02 08:20:03]

The CQ bit was checked by davve@opera.com

[commit-bot: I haz the power, 2014-07-02 08:20:43]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/davve@opera.com/359673003/20001

[commit-bot: I haz the power, 2014-07-02 13:10:56]

Change committed as 177374