Remove the SVG paint culling optimization

Source/core/rendering/svg/SVGRenderingContext.cpp

 /*
  * Copyright (C) 2007, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.  All rights reserved.
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 146 matching lines @@
             // Return with false here may mean that we don't need to draw the content
             // (because it was either drawn before or empty) but we still need to apply the filter.
             m_renderingFlags |= PostApplyResources;
             if (!m_filter->prepareEffect(m_object, m_paintInfo->context))
                 return;
 
             // Since we're caching the resulting bitmap and do not invalidate it on paint invalidation rect
             // changes, we need to paint the whole filter region. Otherwise, elements not visible
             // at the time of the initial paint (due to scrolling, window size, etc.) will never
             // be drawn.
-            m_paintInfo->rect = IntRect(m_filter->drawingRegion(m_object));
+            m_paintInfo->rect = LayoutRect::infiniteIntRect();
         }
     } else {
         // Broken filter disables rendering.
         if (svgStyle.hasFilter())
             return;
     }
 
     if (!isIsolationInstalled() && SVGRenderSupport::isIsolationRequired(object)) {
         m_paintInfo->context->beginTransparencyLayer(1);
         m_renderingFlags |= EndOpacityLayer;
@@ skipping 77 matching lines @@
 {
     ASSERT(context);
     ASSERT(item);
     ASSERT(!item->needsLayout());
 
     PaintInfo info(context, LayoutRect::infiniteIntRect(), PaintPhaseForeground, PaintBehaviorNormal);
     item->paint(info, IntPoint());
 }
 
 } // namespace blink