Ozone integration.

ui/ozone/demo/renderer_base.cc

+// Copyright 2014 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/ozone/demo/renderer_base.h"
+
+namespace ui {
+
+namespace {
+const int kAnimationSteps = 240;
+}  // namespace
+
+RendererBase::RendererBase(gfx::AcceleratedWidget widget, const gfx::Size& size)
+    : widget_(widget), size_(size) {
+}
+
+RendererBase::~RendererBase() {
+}
+
+float RendererBase::NextFraction() {
+  float fraction = (sinf(iteration_ * 2 * M_PI / kAnimationSteps) + 1) / 2;
+
+  iteration_++;
+  iteration_ %= kAnimationSteps;
+
+  return fraction;
+}
+
+}  // namespace ui