Implement interfaces in PaintInfo and make it a class.

Source/core/rendering/svg/SVGRootInlineBox.cpp

Index: Source/core/rendering/svg/SVGRootInlineBox.cpp
diff --git a/Source/core/rendering/svg/SVGRootInlineBox.cpp b/Source/core/rendering/svg/SVGRootInlineBox.cpp
index f81e128044e92e00749640f166ad0789997e0571..c9525f4db8309496d9ecc9d3a27c5b72301bdd75 100644
--- a/Source/core/rendering/svg/SVGRootInlineBox.cpp
+++ b/Source/core/rendering/svg/SVGRootInlineBox.cpp
@@ -35,8 +35,8 @@ namespace WebCore {
 
 void SVGRootInlineBox::paint(PaintInfo& paintInfo, const LayoutPoint&, LayoutUnit, LayoutUnit)
 {
-    ASSERT(paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseSelection);
-    ASSERT(!paintInfo.context->paintingDisabled());
+    ASSERT(paintInfo.getPhase() == PaintPhaseForeground || paintInfo.getPhase() == PaintPhaseSelection);
+    ASSERT(!paintInfo.getContext()->paintingDisabled());
 
     RenderObject* boxRenderer = renderer();
     ASSERT(boxRenderer);