Not for review.

ui/gfx/ozone/overlay_hal_ozone.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 "ui/gfx/ozone/overlay_hal_ozone.h"
+
+#include <stdlib.h>
+
+namespace gfx {
+
+// static
+OverlayHALOzone* OverlayHALOzone::impl_ = NULL;
+
+OverlayHALOzone::SurfaceCandidate::SurfaceCandidate()
+    : format(UNKNOWN), overlay_handled(false) {}
+
+OverlayHALOzone::SurfaceCandidate::~SurfaceCandidate() {}
+
+class OverlayHALOzoneStub : public OverlayHALOzone {
+ public:
+  OverlayHALOzoneStub() {}
+  virtual ~OverlayHALOzoneStub() {}
+
+  virtual void CheckOverlaySupport(std::vector<SurfaceCandidate>* surfaces)
+      OVERRIDE {}
+};
+
+OverlayHALOzone::OverlayHALOzone() {}
+
+OverlayHALOzone::~OverlayHALOzone() {}
+
+OverlayHALOzone* OverlayHALOzone::GetInstance() { return impl_; }
+
+void OverlayHALOzone::SetInstance(OverlayHALOzone* impl) { impl_ = impl; }
+
+// static
+OverlayHALOzone* OverlayHALOzone::CreateTestHelper() {
+  return new OverlayHALOzoneStub;
+}
+
+}  // namespace gfx