Reviewed by Darin.

        <rdar://problem/5433236> Print preview of empty txt file crashes Safari
        Fix: Adjust computePageRectsForFrame to always return at least one 
        page rect, even if document height is zero.

        * WebCore.vcproj/WebCore.vcproj:
        * bridge/win/FrameWin.h: Added Vector& parameter to 
        computePagesRectsForFrame; changed its return type to void.
        * bridge/win/FrameWin.cpp:
        (WebCore::computePageRectsForFrame): Reordered the loop that inserts
        rects into the vector.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@25218 268f45cc-cd09-0410-ab3c-d52691b4dbfc