Add support for the CSS3 box-shadow property.

        Reviewed by olliej

        * fast/box-shadow/basic-shadows-expected.checksum: Added.
        * fast/box-shadow/basic-shadows-expected.png: Added.
        * fast/box-shadow/basic-shadows-expected.txt: Added.
        * fast/box-shadow/basic-shadows.html: Added.

WebCore:

        Add support for the CSS3 box-shadow property.

        Reviewed by olliej

        fast/box-shadow/ contains the tests for this feature.

        * platform/graphics/GraphicsContext.cpp:
        (WebCore::GraphicsContext::clipOutRoundedRect):
        * platform/graphics/GraphicsContext.h:
        * platform/graphics/cg/GraphicsContextCG.cpp:
        (WebCore::GraphicsContext::fillRoundedRect):
        (WebCore::GraphicsContext::clipOut):
        (WebCore::GraphicsContext::clipOutEllipseInRect):
        * platform/graphics/qt/GraphicsContextQt.cpp:
        (WebCore::GraphicsContext::fillRoundedRect):
        (WebCore::GraphicsContext::clipOut):
        (WebCore::GraphicsContext::clipOutEllipseInRect):
        * rendering/InlineFlowBox.cpp:
        (WebCore::InlineFlowBox::paint):
        (WebCore::InlineFlowBox::paintBoxShadow):
        (WebCore::InlineFlowBox::paintBoxDecorations):
        (WebCore::shouldDrawTextDecoration):
        (WebCore::InlineFlowBox::paintTextDecorations):
        * rendering/InlineFlowBox.h:
        * rendering/InlineRunBox.h:
        (WebCore::InlineRunBox::paintBoxDecorations):
        (WebCore::InlineRunBox::paintTextDecorations):
        * rendering/RenderBlock.cpp:
        (WebCore::RenderBlock::paintObject):
        * rendering/RenderBox.cpp:
        (WebCore::RenderBox::setStyle):
        (WebCore::RenderBox::paintBoxDecorations):
        (WebCore::RenderBox::paintBackgroundExtended):
        * rendering/RenderFieldset.cpp:
        (WebCore::RenderFieldset::paintBoxDecorations):
        * rendering/RenderHTMLCanvas.cpp:
        (WebCore::RenderHTMLCanvas::paint):
        * rendering/RenderImage.cpp:
        (WebCore::RenderImage::paint):
        * rendering/RenderImage.h:
        * rendering/RenderListMarker.cpp:
        (WebCore::RenderListMarker::paint):
        * rendering/RenderObject.cpp:
        (WebCore::RenderObject::mustRepaintBackgroundOrBorder):
        (WebCore::RenderObject::paintBoxShadow):
        (WebCore::RenderObject::dump):
        (WebCore::RenderObject::setStyle):
        * rendering/RenderObject.h:
        (WebCore::RenderObject::hasBoxDecorations):
        (WebCore::RenderObject::setHasBoxDecorations):
        * rendering/RenderSVGContainer.cpp:
        (WebCore::RenderSVGContainer::paint):
        * rendering/RenderTable.cpp:
        (WebCore::RenderTable::paint):
        (WebCore::RenderTable::paintBoxDecorations):
        * rendering/RenderTableCell.cpp:
        (WebCore::RenderTableCell::RenderTableCell):
        (WebCore::RenderTableCell::setStyle):
        (WebCore::RenderTableCell::paintBoxDecorations):
        * rendering/RenderWidget.cpp:
        (WebCore::RenderWidget::paint):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@18654 268f45cc-cd09-0410-ab3c-d52691b4dbfc