DOMSelection.getRangeAt() returns a different range than the selection
        https://bugs.webkit.org/show_bug.cgi?id=23601

        Rename toRange to toNormalizedRange and add new firstRange which returns an unmodified range

        Test: fast/dom/Selection/getRangeAt.html

        * WebCore.base.exp:
        * dom/InputElement.cpp:
        (WebCore::InputElement::handleBeforeTextInsertedEvent):
        * editing/DeleteButtonController.cpp:
        (WebCore::enclosingDeletableElement):
        * editing/Editor.cpp:
        (WebCore::Editor::selectedRange):
        (WebCore::Editor::fontForSelection):
        (WebCore::Editor::applyStyleToSelection):
        (WebCore::Editor::applyParagraphStyleToSelection):
        (WebCore::Editor::insertTextWithoutSendingTextEvent):
        (WebCore::Editor::insertLineBreak):
        (WebCore::Editor::insertParagraphSeparator):
        (WebCore::Editor::ignoreSpelling):
        (WebCore::Editor::isSelectionUngrammatical):
        (WebCore::Editor::guessesForUngrammaticalSelection):
        (WebCore::markMisspellingsOrBadGrammar):
        (WebCore::Editor::rangeForPoint):
        * editing/EditorCommand.cpp:
        (WebCore::expandSelectionToGranularity):
        (WebCore::executeDeleteToMark):
        (WebCore::executeSelectToMark):
        * editing/RemoveFormatCommand.cpp:
        (WebCore::RemoveFormatCommand::doApply):
        * editing/ReplaceSelectionCommand.cpp:
        (WebCore::ReplacementFragment::ReplacementFragment):
        * editing/Selection.cpp:
        (WebCore::Selection::firstRange):
        (WebCore::Selection::toNormalizedRange):
        * editing/Selection.h:
        * editing/SelectionController.h:
        (WebCore::SelectionController::toNormalizedRange):
        * editing/TypingCommand.cpp:
        (WebCore::TypingCommand::deleteKeyPressed):
        (WebCore::TypingCommand::forwardDeleteKeyPressed):
        * editing/markup.cpp:
        (WebCore::createMarkup):
        * loader/archive/cf/LegacyWebArchive.cpp:
        (WebCore::LegacyWebArchive::createFromSelection):
        * page/AccessibilityRenderObject.cpp:
        (WebCore::AccessibilityRenderObject::ariaSelectedTextDOMRange):
        * page/ContextMenuController.cpp:
        (WebCore::ContextMenuController::contextMenuItemSelected):
        * page/DOMSelection.cpp:
        (WebCore::DOMSelection::getRangeAt):
        (WebCore::DOMSelection::addRange):
        (WebCore::DOMSelection::deleteFromDocument):
        (WebCore::DOMSelection::containsNode):
        (WebCore::DOMSelection::toString):
        * page/DragController.cpp:
        (WebCore::setSelectionToDragCaret):
        (WebCore::DragController::concludeEditDrag):
        (WebCore::DragController::startDrag):
        * page/EventHandler.cpp:
        (WebCore::EventHandler::dispatchMouseEvent):
        * page/Frame.cpp:
        (WebCore::Frame::selectedText):
        (WebCore::Frame::shouldChangeSelection):
        (WebCore::Frame::shouldDeleteSelection):
        (WebCore::Frame::selectionComputedStyle):
        (WebCore::Frame::selectionTextRects):
        (WebCore::Frame::findString):
        (WebCore::Frame::respondToChangedSelection):
        * platform/ContextMenu.cpp:
        (WebCore::selectionContainsPossibleWord):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@40746 268f45cc-cd09-0410-ab3c-d52691b4dbfc