Use SkMatrix44 for the underlying implementation of ui::Transform

ui/gfx/canvas_skia.cc

 // Copyright (c) 2011 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 "ui/gfx/canvas_skia.h"
 
 #include <limits>
 
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
@@ skipping 313 matching lines @@
 }
 
 gfx::NativeDrawingContext CanvasSkia::BeginPlatformPaint() {
   return skia::BeginPlatformPaint(this);
 }
 
 void CanvasSkia::EndPlatformPaint() {
   skia::EndPlatformPaint(this);
 }
 
+#if !defined(OS_MACOSX)
 void CanvasSkia::Transform(const ui::Transform& transform) {
   concat(transform.matrix());
 }
+#endif
 
 CanvasSkia* CanvasSkia::AsCanvasSkia() {
   return this;
 }
 
 const CanvasSkia* CanvasSkia::AsCanvasSkia() const {
   return this;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ skipping 40 matching lines @@
 
 CanvasPaint* CanvasPaint::CreateCanvasPaint(gfx::NativeView view) {
 #if defined(OS_WIN)
   return new CanvasPaintWin(view);
 #else
   return NULL;
 #endif
 }
 
 }  // namespace gfx