Reviewed by Adam Barth.

        Turn on adoptRef assertion for RefCounted
        https://bugs.webkit.org/show_bug.cgi?id=41547

        * wtf/CrossThreadRefCounted.h: Fixed include style. Includes of other
        WTF headers should use "" includes; consistent in most WTF headers.
        Added a call to relaxAdoptionRequirement.

        * wtf/RefCounted.h: Fixed include style. Removed LOOSE_REF_COUNTED.
        Added relaxAdoptionRequirement.
2010-07-07  Darin Adler  <darin@apple.com>

        Reviewed by Adam Barth.

        Turn on adoptRef assertion for RefCounted
        https://bugs.webkit.org/show_bug.cgi?id=41547

        The WebCore part of this fixes all the assertions I saw in testing.

        * html/FileReader.cpp:
        (WebCore::FileReader::readAsBinaryString): Added null checks.
        Callers from JavaScript can pass the wrong type, which becomes null.
        (WebCore::FileReader::readAsText): Ditto.
        (WebCore::FileReader::r...