Reviewed by kevin.

        Move render_button to RenderButton.
        Various small style cleanup.

        * WebCore.xcodeproj/project.pbxproj:
        * html/HTMLButtonElement.cpp:
        * html/HTMLElement.cpp:
        * html/HTMLGenericFormElement.cpp:
        * html/HTMLInputElement.cpp:
        * platform/mac/WebCoreTextArea.mm:
        * rendering/RenderApplet.h:
        * rendering/RenderBox.cpp:
        * rendering/RenderButton.cpp: Added.
        (WebCore::RenderButton::RenderButton):
        (WebCore::RenderButton::addChild):
        (WebCore::RenderButton::removeChild):
        * rendering/RenderButton.h: Added.
        * rendering/RenderEmptyApplet.h:
        * rendering/RenderHTMLCanvas.h:
        * rendering/RenderTreeAsText.cpp:
        * rendering/render_button.cpp: Removed.
        * rendering/render_button.h: Removed.
        * rendering/table_layout.cpp:
        (WebCore::FixedTableLayout::FixedTableLayout):
        (WebCore::FixedTableLayout::calcWidthArray):
        (WebCore::FixedTableLayout::calcMinMaxWidth):
        (WebCore::FixedTableLayout::layout):
        (WebCore::AutoTableLayout::AutoTableLayout):
        (WebCore::AutoTableLayout::recalcColumn):
        (WebCore::AutoTableLayout::fullRecalc):
        (WebCore::AutoTableLayout::calcMinMaxWidth):
        (WebCore::AutoTableLayout::calcEffectiveWidth):
        (WebCore::AutoTableLayout::insertSpanCell):
        (WebCore::AutoTableLayout::layout):
        * rendering/table_layout.h:
        (WebCore::TableLayout::TableLayout):
        (WebCore::AutoTableLayout::totalPercent):
        (WebCore::AutoTableLayout::Layout::Layout):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@14336 268f45cc-cd09-0410-ab3c-d52691b4dbfc