Reviewed by Sam Weinig.

No change in funcitonality

* WebCore.xcodeproj/project.pbxproj: Added TypesettingFeatures.h.
* platform/graphics/Font.h:
(WebCore::Font::typesettingFeatures): Added. Determines the typesetting
    features from the text redndering mode.
* platform/graphics/FontFastPath.cpp:
(WebCore::Font::canUseGlyphCache): Use typesettingFeatures().
* platform/graphics/SimpleFontData.h:
* platform/graphics/TypesettingFeatures.h: Added.
* platform/graphics/mac/ComplexTextControllerATSUI.cpp:
(WebCore::disableLigatures): Take TypesettingFeatures instead of
    TextRenderingMode.
(WebCore::initializeATSUStyle): Ditto.
(WebCore::ComplexTextController::collectComplexTextRunsForCharactersATSUI):
    Use typesettingFeatures().
* platform/graphics/mac/ComplexTextControllerCoreText.cpp:
(WebCore::ComplexTextController::collectComplexTextRunsForCharactersCoreText):
    Ditto.
* platform/graphics/mac/SimpleFontDataMac.mm:
(WebCore::SimpleFontData::getCFStringAttributes): Take
    TypesettingFeatures instead of TextRenderingMode.
* rendering/RenderBlockLineLayout.cpp:
(WebCore::RenderBlock::findNextLineBreak): Use TypesettingFeatures().



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@52931 268f45cc-cd09-0410-ab3c-d52691b4dbfc