[CSS Grid Layout] RenderGrid::growGrid refactoring

[CSS Grid Layout] RenderGrid::growGrid refactoring

Now it's called RenderGrid::ensureGridSize and it allows to grow both 
directions at once.
Remove checkings before calling it as they are not needed anymore.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=175885

[Manuel Rego, 2014-06-04 20:14:12]

Small refactoring in growGrid as suggested by @jchaffraix at
https://codereview.chromium.org/196943026/#msg14

[Julien - ping for review, 2014-06-10 00:13:00]

lgtm

https://codereview.chromium.org/319593002/diff/1/Source/core/rendering/Render...
File Source/core/rendering/RenderGrid.cpp (right):

https://codereview.chromium.org/319593002/diff/1/Source/core/rendering/Render...
Source/core/rendering/RenderGrid.cpp:731: void RenderGrid::growGrid(size_t
maximumRowIndex, size_t maximumColumnIndex)
I think the name "growGrid" is not appropriate anymore as we may not do
anything. The old code would always grow (due to the ASSERT).

A better name would be ensureGridSize or ensureGridCanContain

[Manuel Rego, 2014-06-10 10:25:55]

Thanks for the review.

https://codereview.chromium.org/319593002/diff/1/Source/core/rendering/Render...
File Source/core/rendering/RenderGrid.cpp (right):

https://codereview.chromium.org/319593002/diff/1/Source/core/rendering/Render...
Source/core/rendering/RenderGrid.cpp:731: void RenderGrid::growGrid(size_t
maximumRowIndex, size_t maximumColumnIndex)
Yes, I agree. Updated the name.

[Manuel Rego, 2014-06-10 10:26:03]

The CQ bit was checked by rego@igalia.com

[commit-bot: I haz the power, 2014-06-10 10:27:16]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/rego@igalia.com/319593002/10001

[commit-bot: I haz the power, 2014-06-10 11:30:04]

Change committed as 175885