Clean up transform methods in GraphicsContext.

Source/core/rendering/RenderLayerScrollableArea.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 1309 matching lines @@
         cornerResizerSize.scale(0.5f);
     } else {
         DEFINE_STATIC_REF(Image, resizeCornerImageLoRes, (Image::loadPlatformResource("textAreaResizeCorner")));
         resizeCornerImage = resizeCornerImageLoRes;
         cornerResizerSize = resizeCornerImage->size();
     }
 
     if (box().style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft()) {
         context->save();
         context->translate(resizerCornerRect.x() + cornerResizerSize.width(), resizerCornerRect.y() + resizerCornerRect.height() - cornerResizerSize.height());
-        context->scale(FloatSize(-1.0, 1.0));
+        context->scale(-1.0, 1.0);
         context->drawImage(resizeCornerImage.get(), IntRect(IntPoint(), cornerResizerSize));
         context->restore();
         return;
     }
     IntRect imageRect(resizerCornerRect.maxXMaxYCorner() - cornerResizerSize, cornerResizerSize);
     context->drawImage(resizeCornerImage.get(), imageRect);
 }
 
 IntSize RenderLayerScrollableArea::offsetFromResizeCorner(const IntPoint& absolutePoint) const
 {
@@ skipping 159 matching lines @@
     DisableCompositingQueryAsserts disabler;
     return box().hasCompositedLayerMapping() && box().compositedLayerMapping()->scrollingLayer();
 }
 
 bool RenderLayerScrollableArea::needsCompositedScrolling() const
 {
     return scrollsOverflow() && box().view()->compositor()->acceleratedCompositingForOverflowScrollEnabled();
 }
 
 } // Namespace WebCore