Invalid height of column flex children with overflow: scroll

Invalid height of column flex children with overflow: scroll
    
    Children of flexbox with flex-direction: column/column-reverse
    shrinked their height after applying the overflow: scroll
    style. Children shows an incorrect height. The difference
    in height coming is equal to scrollbarLogicalHeight.
    
    This bug is occuring because we are not taking into
    account the scrollbar height while computing the
    mainAxisExtentForChild. This patch fixes this bug
    by adding scrollbarLogicalHeight while calculating
    mainAxisExtentForChild.
    
    BUG=364977
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=179095

[harpreet.sk, 2014-07-25 13:39:54]

ptal...

[harpreet.sk, 2014-07-28 17:34:44]

ping..

[leviw_travelin_and_unemployed, 2014-07-28 20:51:12]

lgtm

[commit-bot: I haz the power, 2014-07-28 20:52:00]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/harpreet.sk@samsung.com/417153003/20001

[commit-bot: I haz the power, 2014-07-28 21:59:42]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  win_gpu_triggered_tests on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/win_gpu_triggered...)

[commit-bot: I haz the power, 2014-07-28 22:55:31]

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

[commit-bot: I haz the power, 2014-07-28 22:55:32]

Try jobs failed on following builders:
  win_gpu_triggered_tests on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/win_gpu_triggered...)

[harpreet.sk, 2014-07-29 04:14:14]

The CQ bit was checked by harpreet.sk@samsung.com

[commit-bot: I haz the power, 2014-07-29 04:14:38]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/harpreet.sk@samsung.com/417153003/20001

[commit-bot: I haz the power, 2014-07-29 04:16:18]

Change committed as 179095