Reviewed by Pavel Feldman.

        Web Inspector: Implement handling of CSS operations in InspectorCSSAgent.
        Property toggling not implemented yet. The code is not going live.
        https://bugs.webkit.org/show_bug.cgi?id=45825

        * CMakeLists.txt:
        * GNUmakefile.am:
        * WebCore.gypi:
        * WebCore.pro:
        * WebCore.vcproj/WebCore.vcproj:
        * WebCore.xcodeproj/project.pbxproj:
        * inspector/InspectorCSSAgent.cpp: Added.
        (WebCore::InspectorCSSAgent::buildObjectForStyle):
        (WebCore::InspectorCSSAgent::parentStyleSheet):
        (WebCore::InspectorCSSAgent::asCSSStyleRule):
        (WebCore::InspectorCSSAgent::InspectorCSSAgent):
        (WebCore::InspectorCSSAgent::~InspectorCSSAgent):
        (WebCore::InspectorCSSAgent::reset):
        (WebCore::InspectorCSSAgent::getMatchedRulesForNode2):
        (WebCore::InspectorCSSAgent::getMatchedPseudoRulesForNode2):
        (WebCore::InspectorCSSAgent::getAttributeStylesForNode2):
        (WebCore::InspectorCSSAgent::getInlineStyleForNode2):
        (WebCore::InspectorCSSAgent::getComputedStyleForNode2):
        (WebCore::InspectorCSSAgent::getInheritedStylesForNode2):
        (WebCore::InspectorCSSAgent::getAllStyles2):
        (WebCore::InspectorCSSAgent::getStyleSheet2):
        (WebCore::InspectorCSSAgent::setStyleSheetText2):
        (WebCore::InspectorCSSAgent::setStyleText2):
        (WebCore::InspectorCSSAgent::toggleProperty2):
        (WebCore::InspectorCSSAgent::setRuleSelector2):
        (WebCore::InspectorCSSAgent::addRule2):
        (WebCore::InspectorCSSAgent::getSupportedCSSProperties):
        (WebCore::InspectorCSSAgent::inlineStyleElement):
        (WebCore::InspectorCSSAgent::populateObjectWithStyleProperties):
        (WebCore::InspectorCSSAgent::shorthandValue):
        (WebCore::InspectorCSSAgent::shorthandPriority):
        (WebCore::InspectorCSSAgent::longhandProperties):
        (WebCore::InspectorCSSAgent::asInspectorStyleSheet):
        (WebCore::InspectorCSSAgent::elementForId):
        (WebCore::InspectorCSSAgent::bindStyleSheet):
        (WebCore::InspectorCSSAgent::viaInspectorStyleSheet):
        (WebCore::InspectorCSSAgent::styleSheetForId):
        (WebCore::InspectorCSSAgent::detectOrigin):
        (WebCore::InspectorCSSAgent::buildArrayForRuleList):
        (WebCore::InspectorCSSAgent::buildObjectForAttributeStyles):
        (WebCore::InspectorCSSAgent::didRemoveDocument):
        (WebCore::InspectorCSSAgent::didRemoveDOMNode):
        * inspector/InspectorCSSAgent.h: Added.
        (WebCore::InspectorCSSAgent::create):
        * inspector/InspectorDOMAgent.cpp:
        (WebCore::InspectorDOMAgent::InspectorDOMAgent):
        (WebCore::InspectorDOMAgent::setDOMListener):
        (WebCore::InspectorDOMAgent::unbind):
        (WebCore::InspectorDOMAgent::didRemoveDOMNode):
        (WebCore::InspectorDOMAgent::getSupportedCSSProperties):
        * inspector/InspectorDOMAgent.h:
        (WebCore::InspectorDOMAgent::DOMListener::~DOMListener):
        (WebCore::InspectorDOMAgent::documents):
        * inspector/InspectorStyleSheet.cpp: Added.
        (ParsedStyleSheet::cssStyleSheet):
        (ParsedStyleSheet::text):
        (ParsedStyleSheet::hasText):
        (ParsedStyleSheet::sourceData):
        (ParsedStyleSheet::hasSourceData):
        (ParsedStyleSheet::ParsedStyleSheet):
        (ParsedStyleSheet::setText):
        (ParsedStyleSheet::setSourceData):
        (ParsedStyleSheet::ruleSourceDataAt):
        (WebCore::InspectorStyleSheet::InspectorStyleSheet):
        (WebCore::InspectorStyleSheet::~InspectorStyleSheet):
        (WebCore::InspectorStyleSheet::setText):
        (WebCore::InspectorStyleSheet::setRuleSelector):
        (WebCore::InspectorStyleSheet::addRule):
        (WebCore::InspectorStyleSheet::ruleForId):
        (WebCore::InspectorStyleSheet::buildObjectForStyleSheet):
        (WebCore::InspectorStyleSheet::buildObjectForRule):
        (WebCore::InspectorStyleSheet::buildObjectForStyle):
        (WebCore::InspectorStyleSheet::styleForId):
        (WebCore::InspectorStyleSheet::setStyleText):
        (WebCore::InspectorStyleSheet::ownerDocument):
        (WebCore::InspectorStyleSheet::ruleSourceDataFor):
        (WebCore::InspectorStyleSheet::ruleIndexByStyle):
        (WebCore::InspectorStyleSheet::ensureParsedDataReady):
        (WebCore::InspectorStyleSheet::text):
        (WebCore::InspectorStyleSheet::ensureText):
        (WebCore::InspectorStyleSheet::ensureSourceData):
        (WebCore::InspectorStyleSheet::innerSetStyleSheetText):
        (WebCore::InspectorStyleSheet::innerSetStyleText):
        (WebCore::InspectorStyleSheet::styleSheetTextWithChangedStyle):
        (WebCore::InspectorStyleSheet::findPageRuleWithStyle):
        (WebCore::InspectorStyleSheet::fullRuleId):
        (WebCore::InspectorStyleSheet::revalidateStyle):
        (WebCore::InspectorStyleSheet::styleSheetText):
        (WebCore::InspectorStyleSheet::resourceStyleSheetText):
        (WebCore::InspectorStyleSheet::inlineStyleSheetText):
        (WebCore::InspectorStyleSheet::buildArrayForRuleList):
        (WebCore::InspectorStyleSheetForInlineStyle::InspectorStyleSheetForInlineStyle):
        (WebCore::InspectorStyleSheetForInlineStyle::setStyleText):
        (WebCore::InspectorStyleSheetForInlineStyle::ownerDocument):
        (WebCore::InspectorStyleSheetForInlineStyle::ensureParsedDataReady):
        (WebCore::InspectorStyleSheetForInlineStyle::inlineStyle):
        (WebCore::InspectorStyleSheetForInlineStyle::getStyleAttributeRanges):
        * inspector/InspectorStyleSheet.h: Added.
        (WebCore::InspectorStyleSheet::create):
        (WebCore::InspectorStyleSheet::id):
        (WebCore::InspectorStyleSheet::pageStyleSheet):
        (WebCore::InspectorStyleSheet::canBind):
        (WebCore::InspectorStyleSheet::fullRuleOrStyleId):
        (WebCore::InspectorStyleSheet::ruleOrStyleId):
        (WebCore::InspectorStyleSheet::fullStyleId):
        (WebCore::InspectorStyleSheetForInlineStyle::create):
        (WebCore::InspectorStyleSheetForInlineStyle::styleForId):
        (WebCore::InspectorStyleSheetForInlineStyle::ruleSourceDataFor):
        (WebCore::InspectorStyleSheetForInlineStyle::ruleIndexByStyle):
        * inspector/InspectorUtilities.cpp: Added.
        (WebCore::InspectorUtilities::resourceContentForURL):
        * inspector/InspectorUtilities.h: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@69284 268f45cc-cd09-0410-ab3c-d52691b4dbfc