Use refs for GraphicsContext

third_party/WebKit/Source/platform/mac/LocalCurrentGraphicsContext.mm

 /*
  * Copyright (C) 2006 Apple Computer, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 10 matching lines @@
 
 #include "platform/mac/LocalCurrentGraphicsContext.h"
 #include "platform/mac/ThemeMac.h"
 
 #include <AppKit/NSGraphicsContext.h>
 #include "platform/graphics/GraphicsContext.h"
 #include "platform_canvas.h"
 
 namespace blink {
 
-LocalCurrentGraphicsContext::LocalCurrentGraphicsContext(GraphicsContext* graphicsContext, const IntRect& dirtyRect)
-    : LocalCurrentGraphicsContext(graphicsContext->canvas(), graphicsContext->deviceScaleFactor(), nullptr, dirtyRect)
+LocalCurrentGraphicsContext::LocalCurrentGraphicsContext(GraphicsContext& graphicsContext, const IntRect& dirtyRect)
+    : LocalCurrentGraphicsContext(graphicsContext.canvas(), graphicsContext.deviceScaleFactor(), nullptr, dirtyRect)
 {
 }
 
-LocalCurrentGraphicsContext::LocalCurrentGraphicsContext(GraphicsContext* graphicsContext, const IntRect* interestRect,
+LocalCurrentGraphicsContext::LocalCurrentGraphicsContext(GraphicsContext& graphicsContext, const IntRect* interestRect,
                                                          const IntRect& dirtyRect)
-    : LocalCurrentGraphicsContext(graphicsContext->canvas(), graphicsContext->deviceScaleFactor(), interestRect, dirtyRect)
+    : LocalCurrentGraphicsContext(graphicsContext.canvas(), graphicsContext.deviceScaleFactor(), interestRect, dirtyRect)
 {
 }
 
 LocalCurrentGraphicsContext::LocalCurrentGraphicsContext(SkCanvas* canvas, float deviceScaleFactor, const IntRect* interestRect,
                                                          const IntRect& dirtyRect)
     : m_didSetGraphicsContext(false)
     , m_inflatedDirtyRect(ThemeMac::inflateRectForAA(dirtyRect))
     , m_skiaBitLocker(canvas,
                       m_inflatedDirtyRect,
                       deviceScaleFactor)
@@ skipping 33 matching lines @@
 CGContextRef LocalCurrentGraphicsContext::cgContext()
 {
     // This synchronizes the CGContext to reflect the current SkCanvas state.
     // The implementation may not return the same CGContext each time.
     CGContextRef cgContext = m_skiaBitLocker.cgContext();
 
     return cgContext;
 }
 
 }