Initial checkin of the new Mozart compositor.

services/gfx/compositor/render/render_frame.cc

+// Copyright 2015 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 "services/gfx/compositor/render/render_frame.h"
+
+#include "base/logging.h"
+#include "services/gfx/compositor/render/render_layer.h"
+#include "skia/ext/refptr.h"
+#include "third_party/skia/include/core/SkCanvas.h"
+#include "third_party/skia/include/core/SkPicture.h"
+#include "third_party/skia/include/core/SkPoint.h"
+
+namespace compositor {
+
+RenderFrame::RenderFrame(const std::shared_ptr<RenderLayer>& root_layer,
+                         const SkRect& viewport,
+                         const mojo::gfx::composition::FrameInfo& frame_info)
+    : root_layer_(root_layer), viewport_(viewport), frame_info_(frame_info) {
+  DCHECK(root_layer_);
+}
+
+RenderFrame::~RenderFrame() {}
+
+void RenderFrame::Paint(const PaintingScope& painting_scope,
+                        SkCanvas* canvas) const {
+  skia::RefPtr<SkPicture> picture =
+      painting_scope.painting_cache()->GetSkPicture(painting_scope,
+                                                    root_layer_);
+  DCHECK(picture);
+
+  // TODO: Consider using GrDrawContext instead of SkCanvas.
+  canvas->clear(SK_ColorBLACK);
+  canvas->drawPicture(picture.get());
+  canvas->flush();
+}
+
+mojo::gfx::composition::HitTestResultPtr RenderFrame::HitTest(
+    const SkPoint& point) const {
+  // TODO: implement me
+  auto result = mojo::gfx::composition::HitTestResult::New();
+  result->hits.resize(0u);
+  return result.Pass();
+}
+
+}  // namespace compositor