Use refs for GraphicsContext

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp

Index: third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
diff --git a/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp b/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
index 0aa79d80bd3b0f541317c4258b297326686f33a5..4dc11f9ecac7db38ec34ae53d73cd7c8b7aee5c1 100644
--- a/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
+++ b/third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp
@@ -2188,7 +2188,7 @@ IntRect CompositedLayerMapping::localClipRectForSquashedLayer(const PaintLayer&
     return parentClipRect;
 }
 
-void CompositedLayerMapping::doPaintTask(const GraphicsLayerPaintInfo& paintInfo, const GraphicsLayer& graphicsLayer, const PaintLayerFlags& paintLayerFlags, GraphicsContext* context,
+void CompositedLayerMapping::doPaintTask(const GraphicsLayerPaintInfo& paintInfo, const GraphicsLayer& graphicsLayer, const PaintLayerFlags& paintLayerFlags, GraphicsContext& context,
     const IntRect& clip /* In the coords of rootLayer */) const
 {
     FontCachePurgePreventer fontCachePurgePreventer;
@@ -2196,7 +2196,7 @@ void CompositedLayerMapping::doPaintTask(const GraphicsLayerPaintInfo& paintInfo
     IntSize offset = paintInfo.offsetFromLayoutObject;
     AffineTransform translation;
     translation.translate(-offset.width(), -offset.height());
-    TransformRecorder transformRecorder(*context, graphicsLayer, translation);
+    TransformRecorder transformRecorder(context, graphicsLayer, translation);
 
     // The dirtyRect is in the coords of the painting root.
     IntRect dirtyRect(clip);
@@ -2215,7 +2215,7 @@ void CompositedLayerMapping::doPaintTask(const GraphicsLayerPaintInfo& paintInfo
 #endif
 
     float deviceScaleFactor = blink::deviceScaleFactor(paintInfo.paintLayer->layoutObject()->frame());
-    context->setDeviceScaleFactor(deviceScaleFactor);
+    context.setDeviceScaleFactor(deviceScaleFactor);
 
     if (paintInfo.paintLayer->compositingState() != PaintsIntoGroupedBacking) {
         // FIXME: GraphicsLayers need a way to split for multicol.
@@ -2233,10 +2233,10 @@ void CompositedLayerMapping::doPaintTask(const GraphicsLayerPaintInfo& paintInfo
         // FIXME: Is it correct to clip to dirtyRect in slimming paint mode?
         // FIXME: Combine similar code here and LayerClipRecorder.
         dirtyRect.intersect(paintInfo.localClipRectForSquashedLayer);
-        context->paintController().createAndAppend<ClipDisplayItem>(graphicsLayer, DisplayItem::ClipLayerOverflowControls, dirtyRect);
+        context.paintController().createAndAppend<ClipDisplayItem>(graphicsLayer, DisplayItem::ClipLayerOverflowControls, dirtyRect);
 
         PaintLayerPainter(*paintInfo.paintLayer).paintLayer(context, paintingInfo, paintLayerFlags);
-        context->paintController().endItem<EndClipDisplayItem>(graphicsLayer, DisplayItem::clipTypeToEndClipType(DisplayItem::ClipLayerOverflowControls));
+        context.paintController().endItem<EndClipDisplayItem>(graphicsLayer, DisplayItem::clipTypeToEndClipType(DisplayItem::ClipLayerOverflowControls));
     }
 }
 
@@ -2403,10 +2403,10 @@ void CompositedLayerMapping::paintContents(const GraphicsLayer* graphicsLayer, G
         paintInfo.offsetFromLayoutObject = graphicsLayer->offsetFromLayoutObject();
 
         // We have to use the same root as for hit testing, because both methods can compute and cache clipRects.
-        doPaintTask(paintInfo, *graphicsLayer, paintLayerFlags, &context, interestRect);
+        doPaintTask(paintInfo, *graphicsLayer, paintLayerFlags, context, interestRect);
     } else if (graphicsLayer == m_squashingLayer.get()) {
         for (size_t i = 0; i < m_squashedLayers.size(); ++i)
-            doPaintTask(m_squashedLayers[i], *graphicsLayer, paintLayerFlags, &context, interestRect);
+            doPaintTask(m_squashedLayers[i], *graphicsLayer, paintLayerFlags, context, interestRect);
     } else if (graphicsLayer == layerForHorizontalScrollbar()) {
         paintScrollbar(m_owningLayer.scrollableArea()->horizontalScrollbar(), context, interestRect);
     } else if (graphicsLayer == layerForVerticalScrollbar()) {
@@ -2417,7 +2417,7 @@ void CompositedLayerMapping::paintContents(const GraphicsLayer* graphicsLayer, G
         ScrollableAreaPainter(*m_owningLayer.scrollableArea()).paintScrollCorner(context, -scrollCornerAndResizerLocation, cullRect);
         ScrollableAreaPainter(*m_owningLayer.scrollableArea()).paintResizer(context, -scrollCornerAndResizerLocation, cullRect);
     }
-    InspectorInstrumentation::didPaint(m_owningLayer.layoutObject(), graphicsLayer, &context, LayoutRect(interestRect));
+    InspectorInstrumentation::didPaint(m_owningLayer.layoutObject(), graphicsLayer, context, LayoutRect(interestRect));
 #if ENABLE(ASSERT)
     if (Page* page = layoutObject()->frame()->page())
         page->setIsPainting(false);