[S.P.] Use LayoutObject references instead of pointers.

Source/core/paint/DeprecatedPaintLayerPainter.cpp

Index: Source/core/paint/DeprecatedPaintLayerPainter.cpp
diff --git a/Source/core/paint/DeprecatedPaintLayerPainter.cpp b/Source/core/paint/DeprecatedPaintLayerPainter.cpp
index fa141d8c62c7b95f59eaf7a9c891a4e55b629d4e..6662d9b7e272b34513e928c559ea803d1e50099c 100644
--- a/Source/core/paint/DeprecatedPaintLayerPainter.cpp
+++ b/Source/core/paint/DeprecatedPaintLayerPainter.cpp
@@ -142,7 +142,8 @@ public:
                 }
 
                 m_resourceClipper = toLayoutSVGResourceClipper(toLayoutSVGResourceContainer(element->layoutObject()));
-                if (!SVGClipPainter(*m_resourceClipper).applyClippingToContext(renderLayer.layoutObject(), rootRelativeBounds,
+                ASSERT(renderLayer.layoutObject());

[fs, 2015/03/24 14:15:31]

This has already been dereferenced above, so this can be dropped.

[Erik Dahlström (inactive), 2015/03/24 16:26:00]

Done.

+                if (!SVGClipPainter(*m_resourceClipper).applyClippingToContext(*renderLayer.layoutObject(), rootRelativeBounds,
                     paintingInfo.paintDirtyRect, context, m_clipperState)) {
                     // No need to post-apply the clipper if this failed.
                     m_resourceClipper = 0;
@@ -153,8 +154,10 @@ public:
 
     ~ClipPathHelper()
     {
-        if (m_resourceClipper)
-            SVGClipPainter(*m_resourceClipper).postApplyStatefulResource(m_renderLayer.layoutObject(), m_context, m_clipperState);
+        if (m_resourceClipper) {
+            ASSERT(m_renderLayer.layoutObject());

[fs, 2015/03/24 14:15:31]

As above.

[Erik Dahlström (inactive), 2015/03/24 16:26:00]

Done.

+            SVGClipPainter(*m_resourceClipper).postApplyStatefulResource(*m_renderLayer.layoutObject(), m_context, m_clipperState);
+        }
     }
 private:
     LayoutSVGResourceClipper* m_resourceClipper;