Eliminate CSSElementStyleDeclaration subclasses

Eliminate CSSElementStyleDeclaration subclasses
https://bugs.webkit.org/show_bug.cgi?id=76827

Reviewed by Andreas Kling.

CSSInlineStyleDeclaration and FontFaceStyleDeclaration serve no real purpose.

* GNUmakefile.list.am:
* Target.pri:
* WebCore.gypi:
* WebCore.vcproj/WebCore.vcproj:
* WebCore.xcodeproj/project.pbxproj:
* css/CSSElementStyleDeclaration.cpp:
(WebCore::CSSElementStyleDeclaration::createForSVGFontFaceElement):
(WebCore::CSSElementStyleDeclaration::styleSheet):
* css/CSSElementStyleDeclaration.h:
(WebCore::CSSElementStyleDeclaration::createInline):
(WebCore::toCSSElementStyleDeclaration):
* css/CSSInlineStyleDeclaration.h: Removed.
* css/CSSMutableStyleDeclaration.cpp:
* dom/StyledElement.cpp:
(WebCore::StyledElement::createInlineStyleDecl):
(WebCore::StyledElement::ensureInlineStyleDecl):
(WebCore::StyledElement::copyNonAttributeProperties):
* dom/StyledElement.h:
(WebCore::StyledElement::inlineStyleDecl):
* editing/ApplyStyleCommand.cpp:
(WebCore::ApplyStyleCommand::applyRelativeFontStyleChange):
(WebCore::ApplyStyleCommand::addInlineStyleIfNeeded):
* editing/DeleteButtonController.cpp:
(WebCore::DeleteButtonController::createDeletionUI):
* html/ValidationMessage.cpp:
(WebCore::adjustBubblePosition):
* html/shadow/MediaControlElements.cpp:
(WebCore::MediaControlPanelElement::setPosition):
(WebCore::MediaControlPanelElement::resetPosition):
(WebCore::MediaControlPanelElement::makeOpaque):
(WebCore::MediaControlPanelElement::makeTransparent):
* html/shadow/SliderThumbElement.cpp:
(WebCore::TrackLimiterElement::create):
* svg/SVGFontFaceElement.cpp:
(WebCore::SVGFontFaceElement::SVGFontFaceElement):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@105630 268f45cc-cd09-0410-ab3c-d52691b4dbfc