Implement OzonePlatform

ui/ozone/ozone_platform.cc

+// Copyright (c) 2013 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 "base/command_line.h"
+#include "base/logging.h"
+#include "ui/ozone/ozone_platform.h"
+
+namespace ui {
+
+OzonePlatform::OzonePlatform() {}
+
+OzonePlatform::~OzonePlatform() {
+  gfx::SurfaceFactoryOzone::SetInstance(NULL);
+  ui::EventFactoryOzone::SetInstance(NULL);
+}
+
+// static
+void OzonePlatform::Initialize() {
+  if (instance_)
+    return;
+
+  instance_ = CreateDefaultOzonePlatform();
+
+  // Inject ozone interfaces.
+  gfx::SurfaceFactoryOzone::SetInstance(instance_->GetSurfaceFactoryOzone());
+  ui::EventFactoryOzone::SetInstance(instance_->GetEventFactoryOzone());
+}
+
+// static
+OzonePlatform* OzonePlatform::instance_;
+
+}  // namespace ui