[S.P.] Use 'const LayoutObject&' in SVGMaskPainter.

Source/core/paint/SVGPaintContext.cpp

Index: Source/core/paint/SVGPaintContext.cpp
diff --git a/Source/core/paint/SVGPaintContext.cpp b/Source/core/paint/SVGPaintContext.cpp
index 598f551ff062e7ed1954482c1416a9caca3a57d3..8675e9a3b3f5204ad1d8c64d3c43936bfa0890c3 100644
--- a/Source/core/paint/SVGPaintContext.cpp
+++ b/Source/core/paint/SVGPaintContext.cpp
@@ -59,7 +59,7 @@ SVGPaintContext::~SVGPaintContext()
     if (m_masker) {
         ASSERT(SVGResourcesCache::cachedResourcesForLayoutObject(m_object));
         ASSERT(SVGResourcesCache::cachedResourcesForLayoutObject(m_object)->masker() == m_masker);
-        SVGMaskPainter(*m_masker).finishEffect(m_object, m_paintInfo.context);
+        SVGMaskPainter(*m_masker).finishEffect(*m_object, m_paintInfo.context);
     }
 
     if (m_clipper) {
@@ -146,7 +146,7 @@ bool SVGPaintContext::applyClipIfNecessary(SVGResources* resources)
 bool SVGPaintContext::applyMaskIfNecessary(SVGResources* resources)
 {
     if (LayoutSVGResourceMasker* masker = resources ? resources->masker() : nullptr) {
-        if (!SVGMaskPainter(*masker).prepareEffect(m_object, m_paintInfo.context))
+        if (!SVGMaskPainter(*masker).prepareEffect(*m_object, m_paintInfo.context))
             return false;
         m_masker = masker;
     }