Reviewed by Adele Peterson.

        Mac implementation of outer-spin-button appearance, and anonymous
        element generation for <input type=number>.
        https://bugs.webkit.org/show_bug.cgi?id=32813

        input-appearance-spinbutton.html checks the appearances of various
        sizes of spin-buttons. input-appearance-spinbutton-size.html
        checks a spin-button height is equal to or less than the
        corresponding text field height.

        * platform/mac/fast/forms/input-appearance-spinbutton-expected.checksum: Added.
        * platform/mac/fast/forms/input-appearance-spinbutton-expected.png: Added.
        * platform/mac/fast/forms/input-appearance-spinbutton-expected.txt: Added.
        * platform/mac/fast/forms/input-appearance-spinbutton-size-expected.txt: Added.
        * platform/mac/fast/forms/input-appearance-spinbutton-size.html: Added.
        * platform/mac/fast/forms/input-appearance-spinbutton.html: Added.
2010-04-30  Kent Tamura  <tkent@chromium.org>

        Reviewed by Adele Peterson.

        Mac implementation of outer-spin-button appearance, and anonymous
        element generation for <input type=number>.
        https://bugs.webkit.org/show_bug.cgi?id=32813

        The implementation uses NSStepperCell. Like the other Mac
        controls, it has only three candidates for sizes.

        The editable block of an input element is shrunk, and the
        anonymous block for a spin button is put on the right of the
        editable block.

        Tests: platform/mac/fast/forms/input-appearance-spinbutton-size.html
               platform/mac/fast/forms/input-appearance-spinbutton.html

        * dom/Element.cpp:
        (WebCore::Element::pseudoStyleCacheIsInvalid):
        * dom/InputElement.h:
        (WebCore::InputElement::hasSpinButton):
        * html/HTMLInputElement.h:
        (WebCore::HTMLInputElement::hasSpinButton): Return true for NUMBER type.
        * platform/mac/ThemeMac.mm:
        (WebCore::sizeFromNSControlSize): Split the main part of sizeFromFont()
          to this in order to use stepperControlSizeForFont() instead of
          controlSizeForFont().
        (WebCore::sizeFromFont): Just calls sizeFromNSControlSize() with
          sizeFromFont(). No behavior changes.
        (WebCore::stepperSizes): Returns sizes for mini, small, and regular.
        (WebCore::stepperControlSizeForFont):
          Dedicated version of controlSizeForFont().
        (WebCore::stepper): Returns NSStepperCell object with specified settings.
        (WebCore::paintStepper):
        (WebCore::ThemeMac::controlSize): Support for OuterSpinButton.
        (WebCore::ThemeMac::minimumControlSize): ditto.
        (WebCore::ThemeMac::inflateControlPaintRect): ditto.
        (WebCore::ThemeMac::paint): ditto.
        * rendering/RenderBox.cpp:
        (WebCore::RenderBox::paintBoxDecorations):
          Move the content to paintBoxDecorationsWithSize().
        (WebCore::RenderBox::paintBoxDecorationsWithSize):
        * rendering/RenderBox.h: Declare paintBoxDecorationsWithSize().
        * rendering/RenderTextControlSingleLine.cpp:
        (WebCore::RenderTextControlSingleLine::~RenderTextControlSingleLine):
        (WebCore::RenderTextControlSingleLine::paintBoxDecorations):
          Call paintBoxDecorationsWithSize() with smaller width by decorationWidthRight().
        (WebCore::RenderTextControlSingleLine::addFocusRingRects):
          Add a rectangle of which width is smaller by decorationWidthRight().
        (WebCore::RenderTextControlSingleLine::layout):
          Adjust m_outerSpinButton position.
        (WebCore::RenderTextControlSingleLine::styleDidChange):
        (WebCore::RenderTextControlSingleLine::textBlockWidth):
        (WebCore::RenderTextControlSingleLine::decorationWidthRight):
        (WebCore::RenderTextControlSingleLine::preferredDecorationWidthRight):
        (WebCore::RenderTextControlSingleLine::createSubtreeIfNeeded):
          Creates an element for m_outerSpinButton if it is needed.
        (WebCore::RenderTextControlSingleLine::createInnerTextStyle):
        (WebCore::RenderTextControlSingleLine::createOuterSpinButtonStyle):
        * rendering/RenderTextControlSingleLine.h: Declare new methods and m_outerSpinButton.
        * rendering/RenderThemeMac.mm:
        (WebCore::RenderThemeMac::adjustRepaintRect): Support for OuterSpinButton.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@58561 268f45cc-cd09-0410-ab3c-d52691b4dbfc