Implement OzonePlatform

ui/ozone/ozone_platform.cc

Index: ui/ozone/ozone_platform.cc
diff --git a/ui/ozone/ozone_platform.cc b/ui/ozone/ozone_platform.cc
new file mode 100644
index 0000000000000000000000000000000000000000..24a4c8ed28c2200a2cf1a1c28efbf5301858a785
--- /dev/null
+++ b/ui/ozone/ozone_platform.cc
@@ -0,0 +1,33 @@
+// 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