Address regression bug report, revert the PaintInfo rect member function.

Source/core/rendering/svg/SVGRenderingContext.cpp

Index: Source/core/rendering/svg/SVGRenderingContext.cpp
diff --git a/Source/core/rendering/svg/SVGRenderingContext.cpp b/Source/core/rendering/svg/SVGRenderingContext.cpp
index ed56f41885e5c9c7b5d8bcea400e629dfd658343..89aceefd3866d6a308802efded90868505499e27 100644
--- a/Source/core/rendering/svg/SVGRenderingContext.cpp
+++ b/Source/core/rendering/svg/SVGRenderingContext.cpp
@@ -64,7 +64,7 @@ SVGRenderingContext::~SVGRenderingContext()
             ASSERT(SVGResourcesCache::cachedResourcesForRenderObject(m_object)->filter() == m_filter);
             m_filter->postApplyResource(m_object, m_paintInfo->context, ApplyToDefaultMode, 0, 0);
             m_paintInfo->context = m_savedContext;
-            m_paintInfo->setRect(m_savedPaintRect);
+            m_paintInfo->rect = m_savedPaintRect;
         }
 
         if (m_clipper) {
@@ -168,7 +168,7 @@ void SVGRenderingContext::prepareToRenderSVGContent(RenderObject* object, PaintI
         m_filter = resources->filter();
         if (m_filter) {
             m_savedContext = m_paintInfo->context;
-            m_savedPaintRect = m_paintInfo->rect();
+            m_savedPaintRect = m_paintInfo->rect;
             // 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;
@@ -179,7 +179,7 @@ void SVGRenderingContext::prepareToRenderSVGContent(RenderObject* object, PaintI
             // 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->setRect(IntRect(m_filter->drawingRegion(m_object)));
+            m_paintInfo->rect = IntRect(m_filter->drawingRegion(m_object));
         }
     }