Positioned Floats: Assertion hit in fast/block/positioning/positioned-float-layout...

Positioned Floats: Assertion hit in fast/block/positioning/positioned-float-layout-after-image-load.html
https://bugs.webkit.org/show_bug.cgi?id=67759

Reviewed by Darin Adler.

Source/WebCore:

Test: fast/block/positioning/positioned-float-layout-after-image-load.html

Positioned floats are both floating and positioned. Made the following functions treat them as
positioned rather than as floats by reordering code.

* rendering/RenderBlockLineLayout.cpp:
(WebCore::RenderBlock::LineBreaker::skipTrailingWhitespace):
(WebCore::RenderBlock::LineBreaker::skipLeadingWhitespace):
(WebCore::RenderBlock::LineBreaker::nextLineBreak):

LayoutTests:

Re-added this test from r94695.

* fast/block/positioning/positioned-float-layout-after-image-load-expected.txt: Copied from LayoutTests/fast/block/positioning/positioned-float-layout-after-image-load-expected.txt.
* fast/block/positioning/positioned-float-layout-after-image-load.html: Copied from LayoutTests/fast/block/positioning/positioned-float-layout-after-image-load.html.
* fast/block/positioning/resources/positioned-float-layout-after-image-load-2.html: Copied from LayoutTests/fast/block/positioning/resources/positioned-float-layout-after-image-load-2.html.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@103206 268f45cc-cd09-0410-ab3c-d52691b4dbfc