skia::PlatformCanvas is being deprecated. Going forward we will use gfx::Canvas wherever we need ...

ui/gfx/canvas_skia_paint_mac.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_paint_mac.h"
+
+#include "base/logging.h"
+#include "ui/gfx/canvas_skia.h"
+#include "ui/gfx/rect.h"
+
+namespace gfx {
+
+CanvasSkiaPaint::CanvasSkiaPaint(NSRect dirty_rect, bool opaque) {
+}
+
+CanvasSkiaPaint::~CanvasSkiaPaint() {
+  canvas_->skia_canvas()->restoreToCount(1);
+}
+
+bool CanvasSkiaPaint::IsValid() const {
+  return true;
+}
+
+gfx::Rect CanvasSkiaPaint::GetInvalidRect() const {
+  return gfx::Rect();
+}
+
+Canvas* CanvasSkiaPaint::AsCanvas() {
+  return canvas_.get();
+}
+
+bool CanvasSkiaPaint::InitCanvas() {
+  canvas_.reset(new CanvasSkia);
+  return false;
+}
+
+}  // namespace gfx