Use refs for GraphicsContext

third_party/WebKit/Source/platform/graphics/RecordingImageBufferSurface.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 
 #include "platform/graphics/RecordingImageBufferSurface.h"
 
 #include "platform/graphics/CanvasMetrics.h"
 #include "platform/graphics/ExpensiveCanvasHeuristicParameters.h"
@@ skipping 187 matching lines @@
     m_previousFrame = adoptRef(m_currentFrame->endRecording());
     m_previousFrameHasExpensiveOp = m_currentFrameHasExpensiveOp;
     m_previousFramePixelCount = m_currentFramePixelCount;
     if (!initializeCurrentFrame())
         return false;
 
     m_frameWasCleared = false;
     return true;
 }
 
-void RecordingImageBufferSurface::draw(GraphicsContext* context, const FloatRect& destRect, const FloatRect& srcRect, SkXfermode::Mode op)
+void RecordingImageBufferSurface::draw(GraphicsContext& context, const FloatRect& destRect, const FloatRect& srcRect, SkXfermode::Mode op)
 {
     if (m_fallbackSurface) {
         m_fallbackSurface->draw(context, destRect, srcRect, op);
         return;
     }
 
     RefPtr<SkPicture> picture = getPicture();
     if (picture) {
-        context->compositePicture(picture.get(), destRect, srcRect, op);
+        context.compositePicture(picture.get(), destRect, srcRect, op);
     } else {
         ImageBufferSurface::draw(context, destRect, srcRect, op);
     }
 }
 
 bool RecordingImageBufferSurface::isExpensiveToPaint()
 {
     if (m_fallbackSurface)
         return m_fallbackSurface->isExpensiveToPaint();
 
@@ skipping 44 matching lines @@
 
 void RecordingImageBufferSurface::setIsHidden(bool hidden)
 {
     if (m_fallbackSurface)
         m_fallbackSurface->setIsHidden(hidden);
     else
         ImageBufferSurface::setIsHidden(hidden);
 }
 
 } // namespace blink