Implement interfaces in PaintInfo and make it a class.

Source/core/rendering/svg/RenderSVGImage.cpp

Index: Source/core/rendering/svg/RenderSVGImage.cpp
diff --git a/Source/core/rendering/svg/RenderSVGImage.cpp b/Source/core/rendering/svg/RenderSVGImage.cpp
index 3717f9d442c9efd782894ac0315a234acd41c60b..a8e572d4953b97eb2aefa7daa77f4c504d2923d7 100644
--- a/Source/core/rendering/svg/RenderSVGImage.cpp
+++ b/Source/core/rendering/svg/RenderSVGImage.cpp
@@ -124,7 +124,7 @@ void RenderSVGImage::paint(PaintInfo& paintInfo, const LayoutPoint&)
 {
     ANNOTATE_GRAPHICS_CONTEXT(paintInfo, this);
 
-    if (paintInfo.context->paintingDisabled() || style()->visibility() == HIDDEN || !m_imageResource->hasImage())
+    if (paintInfo.getContext()->paintingDisabled() || style()->visibility() == HIDDEN || !m_imageResource->hasImage())
         return;
 
     FloatRect boundingBox = repaintRectInLocalCoordinates();
@@ -132,12 +132,12 @@ void RenderSVGImage::paint(PaintInfo& paintInfo, const LayoutPoint&)
         return;
 
     PaintInfo childPaintInfo(paintInfo);
-    bool drawsOutline = style()->outlineWidth() && (childPaintInfo.phase == PaintPhaseOutline || childPaintInfo.phase == PaintPhaseSelfOutline);
-    if (drawsOutline || childPaintInfo.phase == PaintPhaseForeground) {
-        GraphicsContextStateSaver stateSaver(*childPaintInfo.context);
+    bool drawsOutline = style()->outlineWidth() && (childPaintInfo.getPhase() == PaintPhaseOutline || childPaintInfo.getPhase() == PaintPhaseSelfOutline);
+    if (drawsOutline || childPaintInfo.getPhase() == PaintPhaseForeground) {
+        GraphicsContextStateSaver stateSaver(*(childPaintInfo.getContext()));
         childPaintInfo.applyTransform(m_localTransform);
 
-        if (childPaintInfo.phase == PaintPhaseForeground) {
+        if (childPaintInfo.getPhase() == PaintPhaseForeground) {
             SVGRenderingContext renderingContext(this, childPaintInfo);
 
             if (renderingContext.isRenderingPrepared()) {
@@ -164,9 +164,9 @@ void RenderSVGImage::paintForeground(PaintInfo& paintInfo)
 
     bool useLowQualityScaling = false;
     if (style()->svgStyle()->bufferedRendering() != BR_STATIC)
-        useLowQualityScaling = ImageQualityController::imageQualityController()->shouldPaintAtLowQuality(paintInfo.context, this, image.get(), image.get(), LayoutSize(destRect.size()));
+        useLowQualityScaling = ImageQualityController::imageQualityController()->shouldPaintAtLowQuality(paintInfo.getContext(), this, image.get(), image.get(), LayoutSize(destRect.size()));
 
-    paintInfo.context->drawImage(image.get(), destRect, srcRect, CompositeSourceOver, DoNotRespectImageOrientation, useLowQualityScaling);
+    paintInfo.getContext()->drawImage(image.get(), destRect, srcRect, CompositeSourceOver, DoNotRespectImageOrientation, useLowQualityScaling);
 }
 
 void RenderSVGImage::invalidateBufferedForeground()