Allow objects without scrollbars to be scrollable

Source/web/WebPluginScrollbarImpl.cpp

Index: Source/web/WebPluginScrollbarImpl.cpp
diff --git a/Source/web/WebPluginScrollbarImpl.cpp b/Source/web/WebPluginScrollbarImpl.cpp
index 0085db491e8f676fcae75ea19bbfbdc5f0d24fa6..514755d2f5a3c46d87683a0b9899198f8737be3a 100644
--- a/Source/web/WebPluginScrollbarImpl.cpp
+++ b/Source/web/WebPluginScrollbarImpl.cpp
@@ -202,8 +202,6 @@ void WebPluginScrollbarImpl::setLocation(const WebRect& rect)
       m_scrollbar->invalidate();
 
     int length = m_scrollbar->orientation() == HorizontalScrollbar ? m_scrollbar->width() : m_scrollbar->height();
-    int pageStep = max(max(static_cast<int>(static_cast<float>(length) * Scrollbar::minFractionToStepWhenPaging()), length - Scrollbar::maxOverlapBetweenPages()), 1);
-    m_scrollbar->setSteps(Scrollbar::pixelsPerLineStep(), pageStep);
     m_scrollbar->setEnabled(m_scrollbar->totalSize() > length);
     m_scrollbar->setProportion(length, m_scrollbar->totalSize());
 }