Split remaining CSSRules into internal and CSSOM types

Split remaining CSSRules into internal and CSSOM types
https://bugs.webkit.org/show_bug.cgi?id=82728

Reviewed by Andreas Kling.

This will complete the move to internal types for CSS rules. The only remaining unsplit type is
the CSSStyleSheet itself.

By separating internal types from the CSSOM we save memory immediately and enable future performance
optimizations as we are no longer tied to the structure of the API.

CSSOM type              Internal type

CSSStyleRule            StyleRule -> StyleRuleBase
CSSPageRule             StyleRulePage -> StyleRuleBase
CSSFontFaceRule         StyleRuleFontFace -> StyleRuleBase
CSSMediaRule            StyleRuleMedia -> StyleRuleBlock -> StyleRuleBase
CSSImportRule           StyleRuleImport -> StyleRuleBase
CSSCharsetRule          String (owned by CSSStyleSheet)
CSSUnknownRule          Never instantiated
WebKitCSSRegionRule     StyleRuleRegion -> StyleRuleBlock -> StyleRuleBase
WebKitKeyframesRule     StyleRuleKeyframes -> StyleRuleBase
WebKitKeyframeRule      StyleKeyframe (owned by StyleRuleKeyframes)

StyleRuleBase is refcounted.

The CSSOM objects contain the public API functions and their implementations (almost) nothing else. Unlike the
CSSOM types they don't have parent pointers, saving memory.

The CSSOM tree is constructed on demand only. The CSSOM wrapper instances are constructed and owned by
the parent wrapper in the tree. Wrappers ref the corresponding internal type. The trees are kept in sync
when mutating.

All rules shrink by a pointer (from the parent pointer removal). The immediate memory savings from this patch are
larger as some earlier patches temporarily increased the memory use to allow incremental refactoring.

* WebCore.xcodeproj/project.pbxproj:
* bindings/js/JSDOMBinding.h:
(WebCore):
* css/CSSFontFaceRule.cpp:
(WebCore::CSSFontFaceRule::CSSFontFaceRule):
(WebCore::CSSFontFaceRule::style):
(WebCore::CSSFontFaceRule::cssText):
(WebCore):
* css/CSSFontFaceRule.h:
(WebCore):
(WebCore::CSSFontFaceRule::create):
(CSSFontFaceRule):
* css/CSSFontSelector.cpp:
(WebCore::CSSFontSelector::addFontFaceRule):
* css/CSSFontSelector.h:
(WebCore):
* css/CSSGrammar.y:
* css/CSSImportRule.cpp:
(WebCore::StyleRuleImport::create):
(WebCore::StyleRuleImport::StyleRuleImport):
(WebCore::StyleRuleImport::~StyleRuleImport):
(WebCore::StyleRuleImport::setCSSStyleSheet):
(WebCore::StyleRuleImport::isLoading):
(WebCore::StyleRuleImport::requestStyleSheet):
(WebCore::CSSImportRule::CSSImportRule):
(WebCore):
(WebCore::CSSImportRule::media):
(WebCore::CSSImportRule::cssText):
* css/CSSImportRule.h:
(StyleRuleImport):
(WebCore::StyleRuleImport::parentStyleSheet):
(WebCore::StyleRuleImport::clearParentStyleSheet):
(WebCore::StyleRuleImport::href):
(WebCore::StyleRuleImport::ImportedStyleSheetClient::ImportedStyleSheetClient):
(ImportedStyleSheetClient):
(CSSImportRule):
(WebCore::CSSImportRule::create):
(WebCore::CSSImportRule::href):
(WebCore::CSSImportRule::styleSheet):
(WebCore):
* css/CSSMediaRule.cpp:
(WebCore::CSSMediaRule::CSSMediaRule):
(WebCore::CSSMediaRule::~CSSMediaRule):
(WebCore::CSSMediaRule::insertRule):
(WebCore::CSSMediaRule::deleteRule):
(WebCore::CSSMediaRule::cssText):
(WebCore::CSSMediaRule::media):
(WebCore):
(WebCore::CSSMediaRule::length):
(WebCore::CSSMediaRule::item):
(WebCore::CSSMediaRule::cssRules):
* css/CSSMediaRule.h:
(WebCore):
(WebCore::CSSMediaRule::create):
(CSSMediaRule):
* css/CSSPageRule.cpp:
(WebCore::CSSPageRule::CSSPageRule):
(WebCore::CSSPageRule::style):
(WebCore::CSSPageRule::selectorText):
(WebCore::CSSPageRule::setSelectorText):
(WebCore::CSSPageRule::cssText):
* css/CSSPageRule.h:
(WebCore):
(WebCore::CSSPageRule::create):
(CSSPageRule):
* css/CSSParser.cpp:
(WebCore::CSSParser::parseRule):
(WebCore::CSSParser::createImportRule):
(WebCore::CSSParser::createMediaRule):
(WebCore::CSSParser::createKeyframesRule):
(WebCore::CSSParser::createStyleRule):
(WebCore::CSSParser::createFontFaceRule):
(WebCore::CSSParser::createPageRule):
(WebCore::CSSParser::createRegionRule):
(WebCore::CSSParser::createMarginAtRule):
* css/CSSParser.h:
(WebCore):
(CSSParser):
* css/CSSPropertySourceData.h:
(WebCore):
* css/CSSStyleRule.cpp:
(WebCore):
(WebCore::selectorTextCache):
(WebCore::CSSStyleRule::CSSStyleRule):
(WebCore::CSSStyleRule::~CSSStyleRule):
(WebCore::CSSStyleRule::setSelectorText):
* css/CSSStyleRule.h:
(WebCore):
(WebCore::CSSStyleRule::create):
(CSSStyleRule):
* css/CSSStyleSelector.cpp:
(RuleSet):
(WebCore::RuleSet::pageRules):
(WebCore::CSSStyleSelector::addKeyframeStyle):
(WebCore::CSSStyleSelector::sortAndTransferMatchedRules):
(WebCore::CSSStyleSelector::collectMatchingRulesForList):
* css/CSSStyleSelector.h:
(CSSStyleSelector):
* css/CSSStyleSheet.cpp:
(WebCore::CSSStyleSheet::CSSStyleSheet):
(WebCore::CSSStyleSheet::parserAppendRule):
(WebCore::CSSStyleSheet::createChildRuleCSSOMWrapper):
(WebCore::CSSStyleSheet::item):
(WebCore::CSSStyleSheet::clearCharsetRule):
(WebCore::CSSStyleSheet::clearRules):
(WebCore::CSSStyleSheet::rules):
(WebCore::CSSStyleSheet::insertRule):
(WebCore::CSSStyleSheet::deleteRule):
(WebCore::CSSStyleSheet::addSubresourceStyleURLs):
(WebCore::CSSStyleSheet::ensureCSSOMWrapper):
(WebCore):
(WebCore::CSSStyleSheet::ownerRule):
(WebCore::CSSStyleSheet::parentStyleSheet):
* css/CSSStyleSheet.h:
(WebCore):
(WebCore::CSSStyleSheet::create):
(CSSStyleSheet):
(WebCore::CSSStyleSheet::childRules):
(WebCore::CSSStyleSheet::importRules):
(WebCore::CSSStyleSheet::clearOwnerRule):
(WebCore::CSSStyleSheet::hasCharsetRule):
* css/StyleRule.cpp:
(WebCore::StyleRuleBase::createCSSOMWrapper):
(WebCore):
(WebCore::StyleRuleBase::destroy):
(WebCore::StyleRule::StyleRule):
(WebCore::StyleRule::setProperties):
(WebCore::StyleRulePage::StyleRulePage):
(WebCore::StyleRulePage::~StyleRulePage):
(WebCore::StyleRulePage::setProperties):
(WebCore::StyleRuleFontFace::StyleRuleFontFace):
(WebCore::StyleRuleFontFace::~StyleRuleFontFace):
(WebCore::StyleRuleFontFace::setProperties):
(WebCore::StyleRuleBlock::StyleRuleBlock):
(WebCore::StyleRuleBlock::wrapperInsertRule):
(WebCore::StyleRuleBlock::wrapperRemoveRule):
(WebCore::StyleRuleMedia::StyleRuleMedia):
(WebCore::StyleRuleRegion::StyleRuleRegion):
* css/StyleRule.h:
(WebCore):
(WebCore::StyleRuleBase::type):
(StyleRuleBase):
(WebCore::StyleRuleBase::isCharsetRule):
(WebCore::StyleRuleBase::isFontFaceRule):
(WebCore::StyleRuleBase::isKeyframesRule):
(WebCore::StyleRuleBase::isMediaRule):
(WebCore::StyleRuleBase::isPageRule):
(WebCore::StyleRuleBase::isStyleRule):
(WebCore::StyleRuleBase::isRegionRule):
(WebCore::StyleRuleBase::isImportRule):
(WebCore::StyleRuleBase::sourceLine):
(WebCore::StyleRuleBase::deref):
(WebCore::StyleRuleBase::StyleRuleBase):
(WebCore::StyleRuleBase::~StyleRuleBase):
(StyleRule):
(WebCore::StyleRule::create):
(WebCore::StyleRule::parserAdoptSelectorVector):
(WebCore::StyleRule::wrapperAdoptSelectorList):
(StyleRuleFontFace):
(WebCore::StyleRuleFontFace::create):
(WebCore::StyleRuleFontFace::properties):
(StyleRulePage):
(WebCore::StyleRulePage::create):
(WebCore::StyleRulePage::selector):
(WebCore::StyleRulePage::properties):
(WebCore::StyleRulePage::parserAdoptSelectorVector):
(WebCore::StyleRulePage::wrapperAdoptSelectorList):
(StyleRuleBlock):
(WebCore::StyleRuleBlock::childRules):
(StyleRuleMedia):
(WebCore::StyleRuleMedia::create):
(WebCore::StyleRuleMedia::mediaQueries):
(StyleRuleRegion):
(WebCore::StyleRuleRegion::create):
(WebCore::StyleRuleRegion::selectorList):
* css/StyleSheet.cpp:
(WebCore::StyleSheet::StyleSheet):
(WebCore):
* css/StyleSheet.h:
(WebCore):
(WebCore::StyleSheet::ownerRule):
(WebCore::StyleSheet::parentStyleSheet):
(StyleSheet):
* css/WebKitCSSKeyframesRule.cpp:
(WebCore::StyleRuleKeyframes::StyleRuleKeyframes):
(WebCore):
(WebCore::StyleRuleKeyframes::~StyleRuleKeyframes):
(WebCore::StyleRuleKeyframes::parserAppendKeyframe):
(WebCore::StyleRuleKeyframes::wrapperAppendKeyframe):
(WebCore::StyleRuleKeyframes::wrapperRemoveKeyframe):
(WebCore::StyleRuleKeyframes::findKeyframeIndex):
(WebCore::WebKitCSSKeyframesRule::WebKitCSSKeyframesRule):
(WebCore::WebKitCSSKeyframesRule::~WebKitCSSKeyframesRule):
(WebCore::WebKitCSSKeyframesRule::setName):
(WebCore::WebKitCSSKeyframesRule::insertRule):
(WebCore::WebKitCSSKeyframesRule::deleteRule):
(WebCore::WebKitCSSKeyframesRule::findRule):
(WebCore::WebKitCSSKeyframesRule::cssText):
(WebCore::WebKitCSSKeyframesRule::length):
(WebCore::WebKitCSSKeyframesRule::item):
* css/WebKitCSSKeyframesRule.h:
(WebCore):
(StyleRuleKeyframes):
(WebCore::StyleRuleKeyframes::create):
(WebCore::StyleRuleKeyframes::keyframes):
(WebCore::StyleRuleKeyframes::name):
(WebCore::StyleRuleKeyframes::setName):
(WebCore::WebKitCSSKeyframesRule::create):
(WebCore::WebKitCSSKeyframesRule::name):
(WebKitCSSKeyframesRule):
* css/WebKitCSSRegionRule.cpp:
(WebCore::WebKitCSSRegionRule::WebKitCSSRegionRule):
(WebCore::WebKitCSSRegionRule::~WebKitCSSRegionRule):
(WebCore::WebKitCSSRegionRule::cssText):
(WebCore::WebKitCSSRegionRule::length):
(WebCore):
(WebCore::WebKitCSSRegionRule::item):
(WebCore::WebKitCSSRegionRule::cssRules):
* css/WebKitCSSRegionRule.h:
(WebCore):
(WebCore::WebKitCSSRegionRule::create):
(WebKitCSSRegionRule):
* inspector/InspectorInstrumentation.cpp:
(WebCore::InspectorInstrumentation::willMatchRuleImpl):
(WebCore::InspectorInstrumentation::willProcessRuleImpl):
* inspector/InspectorStyleSheet.cpp:
(WebCore::InspectorStyleSheet::ensureSourceData):
* inspector/InspectorStyleSheet.h:
(WebCore):
* svg/SVGFontFaceElement.cpp:
(WebCore::SVGFontFaceElement::SVGFontFaceElement):
(WebCore::SVGFontFaceElement::parseAttribute):
(WebCore::SVGFontFaceElement::fontFamily):
(WebCore::SVGFontFaceElement::rebuildFontFace):
(WebCore::SVGFontFaceElement::insertedIntoDocument):
(WebCore::SVGFontFaceElement::removedFromDocument):
* svg/SVGFontFaceElement.h:
(WebCore):
(WebCore::SVGFontFaceElement::fontFaceRule):
(SVGFontFaceElement):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@112923 268f45cc-cd09-0410-ab3c-d52691b4dbfc