https://bugs.webkit.org/show_bug.cgi?id=116689.

Reviewed by Darin Adler.

Test: fast/flexbox/clear-overflow-before-scroll-update.html

Make sure that clearLayoutOverflow only gets called after layer()->updateScrollInfoAfterLayout().
Also move clearLayoutOverflow to RenderBlock so we can keep all the delayed scroll update logic in RenderBlock.

* rendering/RenderBlock.cpp:
(WebCore::RenderBlock::finishDelayUpdateScrollInfo): Call clearLayoutOverflow here.
(WebCore::RenderBlock::layout): Only call clearLayoutOverflow here if scrolling isn't being delayed.
(WebCore::RenderBlock::clearLayoutOverflow): Remove clearLayoutOverflow, move into RenderBlock to keep delayed scrolling logic in the same file.
* rendering/RenderBlock.h:
* rendering/RenderBox.cpp:
* rendering/RenderBox.h:
* rendering/RenderDeprecatedFlexibleBox.cpp: Should call updateScrollInfoAfterLayout, not layer()->updateScrollInfoAfterLayout(), so that it takes delayed scrolling logic into account.
(WebCore::RenderDeprecatedFlexibleBox::layoutBlock):
* rendering/RenderGrid.cpp: Ditto
(WebCore::RenderGrid::layoutBlock):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@151360 268f45cc-cd09-0410-ab3c-d52691b4dbfc