Reviewed by Sam Weinig.

        WebKit part of <rdar://problem/8145955> Add text search API for counting/marking/highlighting matches in a range
        https://bugs.webkit.org/show_bug.cgi?id=50530

        * WebView/WebDocumentInternal.h: Added a DOMRange parameter to -countMatchesForText:options:limit:markMatches:
        * WebView/WebHTMLView.mm:
        (-[WebHTMLView countMatchesForText:inDOMRange:options:limit:markMatches:]): Added DOMRange parameter,
        which is passed through to WebCore.
        * WebView/WebPDFView.mm:
        (isFrameInRange): Added this helper function.
        (-[WebPDFView countMatchesForText:inDOMRange:options:limit:markMatches:]): Added DOMRange parameter and
        a check if the frame is in the range.
        * WebView/WebView.mm:
        (-[WebView countMatchesForText:options:highlight:limit:markMatches:]): Now calls the inDOMRange: version.
        (-[WebView countMatchesForText:inDOMRange:options:highlight:limit:markMatches:]): Added DOMRange
        parameter, which is passed to document views' -countMatchesForText:inDOMRange:options:limit:markMatches:.
        * WebView/WebViewPrivate.h:
2010-12-04  Dan Bernstein  <mitz@apple.com>

        Reviewed by Sam Weinig.

        WebCore part of <rdar://problem/8145955> Add text search API for counting/marking/highlighting matches in a range
        https://bugs.webkit.org/show_bug.cgi?id=50530

        * WebCore.exp.in: Export Range version of countMatchesForText().
        * editing/Editor.cpp:
        (WebCore::isFrameInRange): Added this helper method.
        (WebCore::Editor::countMatchesForText): Added a Range parameter and restricted the result to
        matches that occur in the range.
        * editing/Editor.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@73337 268f45cc-cd09-0410-ab3c-d52691b4dbfc