Remove client-drawn highlights (-webkit-highlight, WebHTMLHighlighter)

Remove client-drawn highlights (-webkit-highlight, WebHTMLHighlighter)
https://bugs.webkit.org/show_bug.cgi?id=128456

Reviewed by Anders Carlsson.

Source/WebCore:

Updated fast/css/getComputedStyle and svg/css results.

* css/CSSComputedStyleDeclaration.cpp:
(WebCore::ComputedStyleExtractor::propertyValue): Removed CSSPropertyWebKitHighlight case.
* css/CSSParser.cpp:
(WebCore::CSSParser::parseValue): Ditto.
* css/CSSPropertyNames.in: Removed -webkit-highlight.
* css/DeprecatedStyleBuilder.cpp:
(WebCore::DeprecatedStyleBuilder::DeprecatedStyleBuilder): Removed
CSSPropertyWebKitHighlight handler.
* css/StyleResolver.cpp:
(WebCore::StyleResolver::applyProperty): Removed CSSPropertyWebKitHighlight case.
* page/Chrome.cpp: Removed customHighlightRect and paintCustomHighlight.
* page/ChromeClient.h: Ditto.
* rendering/InlineTextBox.cpp:
(WebCore::InlineTextBox::paint): Removed painting custom highlight.
* rendering/InlineTextBox.h:
* rendering/RenderBlockLineLayout.cpp:
(WebCore::RenderBlockFlow::createLineBoxesFromBidiRuns): Removed adding overflow for custom
highlights.
* rendering/RenderBox.cpp: Removed paintCustomHighlight.
* rendering/RenderBox.h:
* rendering/RenderImage.cpp:
(WebCore::RenderImage::paintReplaced): Removed painting custom highlight.
* rendering/RenderListMarker.cpp:
(WebCore::RenderListMarker::paint): Ditto.
* rendering/RenderSnapshottedPlugIn.cpp:
(WebCore::RenderSnapshottedPlugIn::paintSnapshot): Ditto.
* rendering/RenderWidget.cpp:
(WebCore::RenderWidget::paint): Ditto.
* rendering/RootInlineBox.cpp:
(WebCore::RootInlineBox::paint): Ditto.
* rendering/RootInlineBox.h:
* rendering/style/RenderStyle.cpp:
(WebCore::RenderStyle::changeRequiresLayout): Removed highlight comparison.
* rendering/style/RenderStyle.h:
* rendering/style/StyleRareInheritedData.cpp:
(WebCore::StyleRareInheritedData::StyleRareInheritedData): Removed initializer.
(WebCore::StyleRareInheritedData::operator==): Removed highlight comparison.
* rendering/style/StyleRareInheritedData.h: Removed highlight member variable.

Source/WebInspectorUI:

* UserInterface/CSSKeywordCompletions.js: Removed -webkit-highlight.

Source/WebKit/mac:

* WebCoreSupport/WebChromeClient.h:
* WebCoreSupport/WebChromeClient.mm: Removed customHighlightRect and paintCustomHighlight.
* WebView/WebHTMLView.mm:
(-[WebHTMLViewPrivate dealloc]): Removed highlighters ivar.
(-[WebHTMLViewPrivate clear]): Ditto.
* WebView/WebHTMLViewInternal.h: Removed declaration.
* WebView/WebHTMLViewPrivate.h: Removed WebHTMLHighlighter protocol and method declarations.

Source/WebKit2:

* WebProcess/WebCoreSupport/WebChromeClient.cpp: Removed customHighlightRect and
paintCustomHighlight.
* WebProcess/WebCoreSupport/WebChromeClient.h:

LayoutTests:

* fast/css/getComputedStyle/computed-style-expected.txt:
* fast/css/getComputedStyle/computed-style-without-renderer-expected.txt:
* svg/css/getComputedStyle-basic-expected.txt:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@163717 268f45cc-cd09-0410-ab3c-d52691b4dbfc