Reviewed by Darin Adler.

        - eliminate RenderFlow::m_clear

        * rendering/RenderBlock.cpp:
        (WebCore::RenderBlock::layoutBlock): Removed code to set m_clear.
        (WebCore::RenderBlock::newLine): Added a 'clear' parameter.
        * rendering/RenderBlock.h:
        * rendering/RenderFlow.h:
        (WebCore::RenderFlow::RenderFlow): Removed initialization of m_clear.
        * rendering/bidi.cpp:
        (WebCore::RenderBlock::layoutInlineChildren): Added a local 'clear'
        variable, passing a pointer to it to findNextLineBreak() and its value
        to newLine(). 
        (WebCore::RenderBlock::findNextLineBreak): Added a 'clear' parameter,
        which this method adjusts when it encounters a <br>.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@31127 268f45cc-cd09-0410-ab3c-d52691b4dbfc