Remove RenderLayerFilterInfo::m_dirtySourceRect

Source/core/rendering/RenderLayerRepainter.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 110 matching lines @@
     }
 }
 
 void RenderLayerRepainter::setFilterBackendNeedsRepaintingInRect(const LayoutRect& rect)
 {
     if (rect.isEmpty())
         return;
     LayoutRect rectForRepaint = rect;
     m_renderer.style()->filterOutsets().expandRect(rectForRepaint);
 
-    RenderLayerFilterInfo* filterInfo = m_renderer.layer()->filterInfo();
-    ASSERT(filterInfo);
-    filterInfo->expandDirtySourceRect(rectForRepaint);
+    ASSERT(m_renderer.layer()->filterInfo());
 
     RenderLayer* parentLayer = enclosingFilterRepaintLayer();
     ASSERT(parentLayer);
     FloatQuad repaintQuad(rectForRepaint);
     LayoutRect parentLayerRect = m_renderer.localToContainerQuad(repaintQuad, parentLayer->renderer()).enclosingBoundingBox();
 
     if (parentLayerRect.isEmpty())
         return;
 
     if (parentLayer->hasCompositedLayerMapping()) {
@@ skipping 18 matching lines @@
 RenderLayer* RenderLayerRepainter::enclosingFilterRepaintLayer() const
 {
     for (const RenderLayer* curr = m_renderer.layer(); curr; curr = curr->parent()) {
         if ((curr != m_renderer.layer() && curr->requiresFullLayerImageForFilters()) || curr->compositingState() == PaintsIntoOwnBacking || curr->isRootLayer())
             return const_cast<RenderLayer*>(curr);
     }
     return 0;
 }
 
 } // namespace blink