2011-02-23 Renata Hodovan <reni@webkit.org>

      Reviewed by Nikolas Zimmermann.

        FEColorMatrixElement changes doesn't require relayout
        https://bugs.webkit.org/show_bug.cgi?id=54880

        When the FEColorMatrixElement receives an update message but the given value remains the same we don't need
        to relayout the filter.

        No new tests are needed because this modificiation is covered by the dynamic update tests of FEColorMatrix.

        * platform/graphics/filters/FEColorMatrix.cpp:
        (WebCore::FEColorMatrix::setType):
        (WebCore::FEColorMatrix::setValues):
        * platform/graphics/filters/FEColorMatrix.h:
        * svg/SVGFEColorMatrixElement.cpp:
        (WebCore::SVGFEColorMatrixElement::setFilterEffectAttribute):
        (WebCore::SVGFEColorMatrixElement::svgAttributeChanged):
        * svg/SVGFEColorMatrixElement.h:


git-svn-id: svn://svn.chromium.org/blink/trunk@79488 bbb929c8-8fbe-4397-9dbb-9b2b20218538