Reviewed by John.

        <rdar://problem/4664697> highlighter SPI needs a node parameter to give more context

        Pass the RenderObject's node to customHighlightLineRect and paintCustomHighlight.

        * page/Frame.h:
        * page/mac/FrameMac.mm:
        (WebCore::Frame::customHighlightLineRect):
        (WebCore::Frame::paintCustomHighlight):
        * page/mac/WebCoreFrameBridge.h:
        * rendering/InlineTextBox.cpp:
        (WebCore::InlineTextBox::paintCustomHighlight):
        * rendering/RenderBox.cpp:
        (WebCore::RenderBox::paintCustomHighlight):
        * rendering/RootInlineBox.cpp:
        (WebCore::RootInlineBox::addHighlightOverflow):
        (WebCore::RootInlineBox::paintCustomHighlight):

WebKit:

        Reviewed by John.

        <rdar://problem/4664697> highlighter SPI needs a node parameter to give more context

        Added new methods to the WebHTMLHighlighter protocol that include the DOMNode being painted.

        * WebCoreSupport/WebFrameBridge.mm:
        (-[WebFrameBridge customHighlightRect:forLine:representedNode:WebCore::]):
        (-[WebFrameBridge paintCustomHighlight:forBox:onLine:behindText:entireLine:representedNode:WebCore::]):
        * WebKit.xcodeproj/project.pbxproj:
        * WebView/WebHTMLViewPrivate.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@20067 268f45cc-cd09-0410-ab3c-d52691b4dbfc