Use refs for GraphicsContext

third_party/WebKit/Source/web/WebPluginContainerImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 321 matching lines @@
 bool WebPluginContainerImpl::getPrintPresetOptionsFromDocument(WebPrintPresetOptions* presetOptions) const
 {
     return m_webPlugin->getPrintPresetOptionsFromDocument(presetOptions);
 }
 
 int WebPluginContainerImpl::printBegin(const WebPrintParams& printParams) const
 {
     return m_webPlugin->printBegin(printParams);
 }
 
-void WebPluginContainerImpl::printPage(int pageNumber, GraphicsContext* gc, const IntRect& printRect)
+void WebPluginContainerImpl::printPage(int pageNumber, GraphicsContext& gc, const IntRect& printRect)
 {
-    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*gc, *m_element->layoutObject(), DisplayItem::Type::WebPlugin, LayoutPoint()))
+    if (LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(gc, *m_element->layoutObject(), DisplayItem::Type::WebPlugin, LayoutPoint()))
         return;
 
-    LayoutObjectDrawingRecorder drawingRecorder(*gc, *m_element->layoutObject(), DisplayItem::Type::WebPlugin, printRect, LayoutPoint());
-    gc->save();
-    WebCanvas* canvas = gc->canvas();
+    LayoutObjectDrawingRecorder drawingRecorder(gc, *m_element->layoutObject(), DisplayItem::Type::WebPlugin, printRect, LayoutPoint());
+    gc.save();
+    WebCanvas* canvas = gc.canvas();
     m_webPlugin->printPage(pageNumber, canvas);
-    gc->restore();
+    gc.restore();
 }
 
 void WebPluginContainerImpl::printEnd()
 {
     m_webPlugin->printEnd();
 }
 
 void WebPluginContainerImpl::copy()
 {
     if (!m_webPlugin->hasSelection())
@@ skipping 612 matching lines @@
         // frame view.
         computeClipRectsForPlugin(m_element, windowRect, clipRect, unobscuredRect);
     }
     getPluginOcclusions(m_element, this->parent(), frameRect(), cutOutRects);
     // Convert to the plugin position.
     for (size_t i = 0; i < cutOutRects.size(); i++)
         cutOutRects[i].move(-frameRect().x(), -frameRect().y());
 }
 
 } // namespace blinkf