Merge 89584 - 2011-06-23 John Abd-El-Malek <jam@chromium.org>

Source/WebKit/chromium/src/WebScrollbarImpl.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 296 matching lines @@
 Scrollbar* WebScrollbarImpl::horizontalScrollbar() const
 {
     return m_scrollbar->orientation() == HorizontalScrollbar ? m_scrollbar.get() : 0;
 }
 
 Scrollbar* WebScrollbarImpl::verticalScrollbar() const
 {
     return m_scrollbar->orientation() == VerticalScrollbar ? m_scrollbar.get() : 0;
 }
 
+int WebScrollbarImpl::visibleHeight() const
+{
+    return m_scrollbar->height();
+}
+
+int WebScrollbarImpl::visibleWidth() const
+{
+    return m_scrollbar->width();
+}
+
+IntSize WebScrollbarImpl::contentsSize() const
+{
+    // This isn't technically correct, since we don't have the contentSize. However it's good enough
+    // to make the ScrollAnimator code happy.
+    int thickness = defaultThickness();
+    int length = m_scrollbar->totalSize();
+    return m_scrollbar->orientation() == VerticalScrollbar ? IntSize(thickness, length) : IntSize(length, thickness);
+}
+
+IntSize WebScrollbarImpl::overhangAmount() const
+{
+    return IntSize();
+}
+
 } // namespace WebKit