Move remaining implementation from CSSStyleDeclaration to subclasses

Move remaining implementation from CSSStyleDeclaration to subclasses
https://bugs.webkit.org/show_bug.cgi?id=77621

Reviewed by Andreas Kling.

This leaves CSSStyleDeclaration a near-pure CSSOM interface.

* bindings/js/JSCSSStyleDeclarationCustom.cpp:
(WebCore::isCSSPropertyName):
(WebCore::JSCSSStyleDeclaration::putDelegate):
* css/CSSComputedStyleDeclaration.cpp:
(WebCore::CSSComputedStyleDeclaration::parentRule):
(WebCore):
* css/CSSComputedStyleDeclaration.h:
(CSSComputedStyleDeclaration):
* css/CSSMutableStyleDeclaration.cpp:
(WebCore::CSSMutableStyleDeclaration::CSSMutableStyleDeclaration):
(WebCore::CSSMutableStyleDeclaration::contextStyleSheet):
(WebCore):
(WebCore::CSSMutableStyleDeclaration::parentRule):
* css/CSSMutableStyleDeclaration.h:
(WebCore::CSSMutableStyleDeclaration::isInlineStyleDeclaration):
(WebCore::CSSMutableStyleDeclaration::parentRuleInternal):
(WebCore::CSSMutableStyleDeclaration::clearParentRule):
(CSSMutableStyleDeclaration):
(WebCore::CSSMutableStyleDeclaration::parentElement):
(WebCore::CSSMutableStyleDeclaration::clearParentElement):
(WebCore::CSSMutableStyleDeclaration::parentStyleSheet):
* css/CSSParser.cpp:
(WebCore::parseColorValue):
(WebCore::parseSimpleLengthValue):
(WebCore::CSSParser::parseValue):
(WebCore::CSSParser::parseDeclaration):
* css/CSSStyleDeclaration.cpp:
(WebCore):
* css/CSSStyleDeclaration.h:
(CSSStyleDeclaration):
(WebCore::CSSStyleDeclaration::parentStyleSheet):
(WebCore::CSSStyleDeclaration::CSSStyleDeclaration):
* css/CSSStyleRule.cpp:
(WebCore::CSSStyleRule::setSelectorText):

    Eliminate unnecessary call to CSSMutableStyleDeclaration::parentStyleSheet()

* css/CSSStyleRule.h:
(WebCore::CSSStyleRule::setDeclaration):
* css/CSSStyleSelector.cpp:
(WebCore::isInsideRegionRule):
(WebCore::CSSStyleSelector::applyDeclaration):
* css/WebKitCSSKeyframeRule.cpp:
(WebCore::WebKitCSSKeyframeRule::setDeclaration):
* page/PageSerializer.cpp:
(WebCore::PageSerializer::serializeFrame):
(WebCore::PageSerializer::serializeCSSStyleSheet):
(WebCore::PageSerializer::retrieveResourcesForCSSRule):
(WebCore::PageSerializer::retrieveResourcesForCSSDeclaration):
* page/PageSerializer.h:

    Eliminate unnecessary call to CSSMutableStyleDeclaration::parentStyleSheet()

(WebCore):
(PageSerializer):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106568 268f45cc-cd09-0410-ab3c-d52691b4dbfc