Reviewed by Ryosuke Niwa.

        Replaced rangeCompliantEquivalent with Position::parentAnchoredEquivalent
        and simplified the logic a bit. Unfortunately, Tables and some legacy
        editing positions still need to be handled specifically.

        remove rangeCompliantEquivalent and replace it with Position methods
        https://bugs.webkit.org/show_bug.cgi?id=25057

        No new tests as this is a refactor that doesn't change behavior.

        * WebCore.exp.in:
        * dom/Document.cpp:
        (WebCore::Document::caretRangeFromPoint):
        * dom/Position.cpp:
        (WebCore::Position::parentAnchoredEquivalent):
        * dom/Position.h:
        * editing/ApplyStyleCommand.cpp:
        (WebCore::ApplyStyleCommand::applyBlockStyle):
        * editing/CompositeEditCommand.cpp:
        (WebCore::CompositeEditCommand::insertNodeAt):
        (WebCore::CompositeEditCommand::moveParagraphs):
        * editing/DeleteSelectionCommand.cpp:
        (WebCore::DeleteSelectionCommand::initializePositionData):
        (WebCore::DeleteSelectionCommand::mergeParagraphs):
        * editing/Editor.cpp:
        (WebCore::Editor::textDirectionForSelection):
        (WebCore::Editor::advanceToNextMisspelling):
        * editing/InsertLineBreakCommand.cpp:
        (WebCore::InsertLineBreakCommand::shouldUseBreakElement):
        * editing/InsertParagraphSeparatorCommand.cpp:
        (WebCore::InsertParagraphSeparatorCommand::doApply):
        * editing/ReplaceSelectionCommand.cpp:
        (WebCore::handleStyleSpansBeforeInsertion):
        * editing/VisiblePosition.cpp:
        (WebCore::makeRange):
        (WebCore::setStart):
        (WebCore::setEnd):
        * editing/VisibleSelection.cpp:
        (WebCore::VisibleSelection::firstRange):
        (WebCore::VisibleSelection::toNormalizedRange):
        (WebCore::makeSearchRange):
        * editing/htmlediting.cpp:
        (WebCore::indexForVisiblePosition):
        * editing/htmlediting.h:
        * editing/visible_units.cpp:
        (WebCore::previousBoundary):
        (WebCore::nextBoundary):
        * page/DOMSelection.cpp:
        (WebCore::anchorPosition):
        (WebCore::focusPosition):
        (WebCore::basePosition):
        (WebCore::extentPosition):
2011-01-19  Levi Weintraub  <leviw@google.com>

        Reviewed by Ryosuke Niwa.

        Updating to use Position::parentAnchoredEquivalent instead of
        the old htmlediting rangeCompliantEquivalent.

        remove rangeCompliantEquivalent and replace it with Position methods
        https://bugs.webkit.org/show_bug.cgi?id=25057

        * WebView/WebFrame.mm:
        (-[WebFrame _smartDeleteRangeForProposedRange:]):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76107 268f45cc-cd09-0410-ab3c-d52691b4dbfc