Merge 76637 - 2011-01-25 Adam Barth <abarth@webkit.org>...

Merge 76637 - 2011-01-25  Adam Barth  <abarth@webkit.org>;

        Reviewed by Eric Seidel.

        Empty URLs are never display isolated
        https://bugs.webkit.org/show_bug.cgi?id=53053

        This check mirrors the check in the local case.  There isn't a good way
        to test this with a LayoutTest, but it is tested in Chromium (where
        this registry is used).

        * platform/SchemeRegistry.cpp:
        (WebCore::SchemeRegistry::shouldTreatURLSchemeAsDisplayIsolated):

TBR=abarth@webkit.org

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=76823