https://bugs.webkit.org/show_bug.cgi?id=122622

Reviewed by Darin Adler.

Source/WebCore:

Make the shape-image-threshold property respond to dynamic changes
made through JS or CSS animations. Responding to changes made to
shape-image-threshold is handled in RenderBox::updateShapeOutsideInfoAfterStyleChange,
while CSSPropertyAnimation.cpp adds the property to the list of
animatable properties.

Tests: fast/shapes/shape-outside-floats/shape-outside-dynamic-shape-image-threshold.html
       fast/shapes/shape-outside-floats/shape-outside-shape-image-threshold-animation.html

* page/animation/CSSPropertyAnimation.cpp:
(WebCore::CSSPropertyAnimationWrapperMap::CSSPropertyAnimationWrapperMap): Add
shape-image-threshold to the list of animatable properties.
* rendering/RenderBox.cpp:
(WebCore::RenderBox::styleDidChange): updateShapeOutsideInfoAfterStyleChange
needs to take two RenderStyle arguments to compare multiple shape properties,
rather than just the shape-outside property.
(WebCore::RenderBox::updateShapeOutsideInfoAfterStyleChange): Compare
shape-image-threshold values to see if they changed, and invalidate the layout
if necessary.
* rendering/RenderBox.h:

LayoutTests:

Adding tests for dynamically changing shape-image threshold via JS and CSS
animations. Included are some SVG resources used as the shape image sources.

* fast/shapes/resources/svg-shape-002.svg: Added.
* fast/shapes/resources/svg-shape-003.svg: Added.
* fast/shapes/shape-outside-floats/shape-outside-dynamic-shape-image-threshold-expected.html: Added.
* fast/shapes/shape-outside-floats/shape-outside-dynamic-shape-image-threshold.html: Added.
* fast/shapes/shape-outside-floats/shape-outside-shape-image-threshold-animation-expected.txt: Added.
* fast/shapes/shape-outside-floats/shape-outside-shape-image-threshold-animation.html: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@157309 268f45cc-cd09-0410-ab3c-d52691b4dbfc