https://bugs.webkit.org/show_bug.cgi?id=122562

Reviewed by Alexandru Chiculita.

Source/WebCore:

The spec says that a shape-outside shape must be clipped to the
margin box. This implements clipping the bottom of the shape to the
bottom of the margin box.

Test: csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-000.html
      csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-001.html
      csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-002.html
      csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-003.html

* rendering/RenderBlockFlow.cpp:
(WebCore::RenderBlockFlow::nextFloatLogicalBottomBelow):

LayoutTests:

Test that the shape is properly clipped to the bottom of the float.

* csswg/contributors/adobe/submitted/shapes/shape-outside/resources/w3c-import.log:
* csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-000-expected.html: Added.
* csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-000.html: Added.
* csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-001-expected.html: Added.
* csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-001.html: Added.
* csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-002-expected.html: Added.
* csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-002.html: Added.
* csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-003-expected.html: Added.
* csswg/contributors/adobe/submitted/shapes/shape-outside/shape-outside-floats-clipped-003.html: Added.
* csswg/contributors/adobe/submitted/shapes/shape-outside/w3c-import.log:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@157186 268f45cc-cd09-0410-ab3c-d52691b4dbfc