Clean up transform methods in GraphicsContext.

Source/core/frame/LocalFrame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 562 matching lines @@
     IntRect paintingRect = pixelSnappedIntRect(renderer->paintingRootRect(topLevelRect));
 
     ASSERT(document()->isActive());
     float deviceScaleFactor = m_host->deviceScaleFactor();
     paintingRect.setWidth(paintingRect.width() * deviceScaleFactor);
     paintingRect.setHeight(paintingRect.height() * deviceScaleFactor);
 
     OwnPtr<ImageBuffer> buffer = ImageBuffer::create(paintingRect.size());
     if (!buffer)
         return nullptr;
-    buffer->context()->scale(FloatSize(deviceScaleFactor, deviceScaleFactor));
+    buffer->context()->scale(deviceScaleFactor, deviceScaleFactor);
     buffer->context()->translate(-paintingRect.x(), -paintingRect.y());
     buffer->context()->clip(FloatRect(0, 0, paintingRect.maxX(), paintingRect.maxY()));
 
     m_view->paintContents(buffer->context(), paintingRect);
 
     RefPtr<Image> image = buffer->copyImage();
     return DragImage::create(image.get(), renderer->shouldRespectImageOrientation(), deviceScaleFactor);
 }
 
 PassOwnPtr<DragImage> LocalFrame::dragImageForSelection()
 {
     if (!selection().isRange())
         return nullptr;
 
     const ScopedFramePaintingState state(this, 0);
     m_view->setPaintBehavior(PaintBehaviorSelectionOnly | PaintBehaviorFlattenCompositingLayers);
     document()->updateLayout();
 
     IntRect paintingRect = enclosingIntRect(selection().bounds());
 
     ASSERT(document()->isActive());
     float deviceScaleFactor = m_host->deviceScaleFactor();
     paintingRect.setWidth(paintingRect.width() * deviceScaleFactor);
     paintingRect.setHeight(paintingRect.height() * deviceScaleFactor);
 
     OwnPtr<ImageBuffer> buffer = ImageBuffer::create(paintingRect.size());
     if (!buffer)
         return nullptr;
-    buffer->context()->scale(FloatSize(deviceScaleFactor, deviceScaleFactor));
+    buffer->context()->scale(deviceScaleFactor, deviceScaleFactor);
     buffer->context()->translate(-paintingRect.x(), -paintingRect.y());
     buffer->context()->clip(FloatRect(0, 0, paintingRect.maxX(), paintingRect.maxY()));
 
     m_view->paintContents(buffer->context(), paintingRect);
 
     RefPtr<Image> image = buffer->copyImage();
     return DragImage::create(image.get(), DoNotRespectImageOrientation, deviceScaleFactor);
 }
 
 double LocalFrame::devicePixelRatio() const
@@ skipping 18 matching lines @@
 LocalFrame* LocalFrame::localFrameRoot()
 {
     LocalFrame* curFrame = this;
     while (curFrame && curFrame->tree().parent() && curFrame->tree().parent()->isLocalFrame())
         curFrame = curFrame->tree().parent();
 
     return curFrame;
 }
 
 } // namespace WebCore