https://bugs.webkit.org/show_bug.cgi?id=71401

Reviewed by Dean Jackson.

Source/WebCore:

Added computed style for the transform parameters of the custom() filter function.
Implemented the FECustomFilter bindings needed to push the value to an actual matrix for the CSS Shader.

Note that transform parameters animations support will come in a different patch:
https://bugs.webkit.org/show_bug.cgi?id=94980.

Test: css3/filters/custom/effect-custom-transform-parameters.html

* GNUmakefile.list.am:
* Target.pri:
* WebCore.gypi:
* WebCore.vcproj/WebCore.vcproj:
* WebCore.xcodeproj/project.pbxproj:
* css/CSSComputedStyleDeclaration.cpp:
(WebCore::matrixTransformValue): Extracted code from computedTransform into a function, so that we
can reuse it.
(WebCore):
(WebCore::computedTransform):
(WebCore::valueForCustomFilterNumberParameter): Made all the custom filter related functions static to match
most of the other functions in this file.
(WebCore::valueForCustomFilterTransformParameter):
(WebCore::valueForCustomFilterParameter):
(WebCore::CSSComputedStyleDeclaration::valueForFilter): Needed the object size to compute the transform.
(WebCore::CSSComputedStyleDeclaration::valueForShadow): Added the const keyword.
(WebCore::CSSComputedStyleDeclaration::getPropertyCSSValue): Passed in the object to the valueForFilter.
* css/CSSComputedStyleDeclaration.h:
(WebCore):
(CSSComputedStyleDeclaration):
* css/StyleResolver.cpp:
(StyleResolver::parseCustomFilterTransformParameter):
(StyleResolver::parseCustomFilterParameter):
(StyleResolver::parseCustomFilterParameterList):
* css/StyleResolver.h:
(StyleResolver):
* platform/graphics/filters/CustomFilterParameter.h:
* platform/graphics/filters/CustomFilterTransformParameter.h: Filter parameter wrapper for the FilterOperations.
(WebCore):
(CustomFilterTransformParameter):
(WebCore::CustomFilterTransformParameter::create):
(WebCore::CustomFilterTransformParameter::blend): Animations will come in future patch.
(WebCore::CustomFilterTransformParameter::operator==):
(WebCore::CustomFilterTransformParameter::applyTransform):
(WebCore::CustomFilterTransformParameter::operations):
(WebCore::CustomFilterTransformParameter::setOperations):
(WebCore::CustomFilterTransformParameter::CustomFilterTransformParameter):
* platform/graphics/filters/FECustomFilter.cpp:
(WebCore::FECustomFilter::bindProgramTransformParameter):
(WebCore):
(WebCore::FECustomFilter::bindProgramParameters):
* platform/graphics/filters/FECustomFilter.h:
(WebCore):
(FECustomFilter):

LayoutTests:

Added test to check for the computed style of the transform parameters of the
custom() function. Also, added a test file to compare the result of applying the transform
using CSS Custom Filters and using CSS 3D Transforms.

* css3/filters/custom/custom-filter-property-computed-style-expected.txt:
* css3/filters/custom/effect-custom-transform-parameters-expected.html: Added.
* css3/filters/custom/effect-custom-transform-parameters.html: Added.
* css3/filters/resources/vertex-transform-parameter.vs: Added.
* css3/filters/script-tests/custom-filter-property-computed-style.js:
(description):
* platform/chromium/css3/filters/custom/custom-filter-property-computed-style-expected.txt:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@127046 268f45cc-cd09-0410-ab3c-d52691b4dbfc