new FontCache.

        Reviewed by andersca

        * WebCore.xcodeproj/project.pbxproj:
        * bridge/mac/WebCoreStringTruncator.mm:
        * kwq/KWQComboBox.mm:
        * kwq/KWQLineEdit.mm:
        * kwq/KWQListBox.mm:
        * platform/Font.h:
        (WebCore::Font::bold):
        * platform/FontCache.cpp: Added.
        (WebCore::FontPlatformDataCacheKey::m_italic):
        (WebCore::FontPlatformDataCacheKey::operator==):
        (WebCore::computeHash):
        (WebCore::FontPlatformDataCacheKeyHash::hash):
        (WebCore::FontPlatformDataCacheKeyHash::equal):
        (WebCore::FontPlatformDataCacheKeyTraits::deletedValue):
        (WebCore::FontCache::getCachedFontPlatformData):
        (WebCore::FontDataCacheKeyHash::hash):
        (WebCore::FontDataCacheKeyHash::equal):
        (WebCore::FontDataCacheKeyTraits::deletedValue):
        (WebCore::FontCache::getCachedFontData):
        (WebCore::FontCache::getFontData):
        (WebCore::FontCache::clearCommonCaches):
        * platform/FontCache.h:
        * platform/FontData.h:
        * platform/FontFamily.cpp:
        (WebCore::FontFamily::FontFamily):
        (WebCore::FontFamily::operator=):
        (WebCore::FontFamily::setFamily):
        * platform/FontFamily.h:
        (WebCore::FontFamily::familyIsEmpty):
        * platform/FontPlatformData.h:
        (WebCore::FontPlatformData::hash):
        (WebCore::FontPlatformData::operator==):
        * platform/mac/FontCacheMac.mm:
        (WebCore::getAppDefaultValue):
        (WebCore::getUserDefaultValue):
        (WebCore::getLCDScaleParameters):
        (WebCore::fontsChanged):
        (WebCore::FontCache::registerForFontChanges):
        (WebCore::FontCache::clearCaches):
        (WebCore::FontCache::getFontDataForCharacters):
        (WebCore::FontCache::getSimilarFontPlatformData):
        (WebCore::FontCache::getLastResortFallbackFont):
        (WebCore::FontCache::createFontPlatformData):
        * platform/mac/FontData.mm:
        (-[NSFont WebCore]):
        (WidthMap::FontData::xHeight):
        (WidthMap::FontData::smallCapsFontData):
        (WidthMap::computeWidthForSpace):
        (WidthMap::setUpFont):
        (WidthMap::fillStyleWithAttributes):
        (WidthMap::FontData::determinePitch):
        * platform/mac/FontFallbackListMac.mm:
        (WebCore::FontFallbackList::setPlatformFont):
        * platform/mac/FontFamilyMac.mm: Removed.
        * platform/mac/FontMac.mm:
        * platform/mac/WebCoreTextRenderer.mm:
        (WebCoreFindFont):
        * platform/mac/WebFontCache.h: Added.
        * platform/mac/WebFontCache.mm: Added.
        (acceptableChoice):
        (betterChoice):
        (+[WebFontCache fontWithFamily:traits:size:]):
        * platform/mac/WebTextRendererFactory.h: Removed.
        * platform/mac/WebTextRendererFactory.mm: Removed.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@14412 268f45cc-cd09-0410-ab3c-d52691b4dbfc