Reviewed by Adele Peterson.

        Allow styling of HTMLProgressElement.
        https://bugs.webkit.org/show_bug.cgi?id=37901

        Added a test for changing the -webkit-appearance statically and dynamically.

        * fast/dom/HTMLProgressElement/progress-bar-value-pseudo-element.html: Added.
        * platform/chromium/test_expectations.txt:
        * platform/gtk/Skipped:
        * platform/mac/fast/dom/HTMLProgressElement: Added.
        * platform/mac/fast/dom/HTMLProgressElement/progress-bar-value-pseudo-element-expected.checksum: Added.
        * platform/mac/fast/dom/HTMLProgressElement/progress-bar-value-pseudo-element-expected.png: Added.
        * platform/mac/fast/dom/HTMLProgressElement/progress-bar-value-pseudo-element-expected.txt: Added.
        * platform/qt/Skipped:
        * platform/win/Skipped:
2010-04-25  yael aharon  <yael.aharon@nokia.com>

        Reviewed by Adele Peterson.

        Allow styling of HTMLProgressElement.
        https://bugs.webkit.org/show_bug.cgi?id=37901

        Added a new pseudo element to represent the value portion of the progress element.
        Web developers can style this pseudo element separate from the rest of the progress element.

        Test: fast/dom/HTMLProgressElement/progress-bar-value-pseudo-element.html

        * css/CSSPrimitiveValueMappings.h:
        (WebCore::CSSPrimitiveValue::CSSPrimitiveValue):
        * css/CSSSelector.cpp:
        (WebCore::CSSSelector::pseudoId):
        (WebCore::nameToPseudoTypeMap):
        (WebCore::CSSSelector::extractPseudoType):
        * css/CSSSelector.h:
        * css/CSSValueKeywords.in:
        * platform/ThemeTypes.h:
        * rendering/RenderProgress.cpp:
        (WebCore::ProgressValueElement::isShadowNode):
        (WebCore::ProgressValueElement::shadowParentNode):
        (WebCore::ProgressValueElement::ProgressValueElement):
        (WebCore::RenderProgress::RenderProgress):
        (WebCore::RenderProgress::~RenderProgress):
        (WebCore::RenderProgress::layout):
        (WebCore::RenderProgress::styleDidChange):
        (WebCore::RenderProgress::updateFromElement):
        (WebCore::RenderProgress::updateValuePartState):
        (WebCore::RenderProgress::createStyleForValuePart):
        (WebCore::RenderProgress::updateAnimationState):
        * rendering/RenderTheme.cpp:
        (WebCore::RenderTheme::isControlStyled):
        * rendering/RenderProgress.h:
        * rendering/style/RenderStyleConstants.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@58228 268f45cc-cd09-0410-ab3c-d52691b4dbfc