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diff --git a/chromium/ui/ozone/demo/skia_renderer.h b/chromium/ui/ozone/demo/skia_renderer.h
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+// Copyright 2018 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.
+
+#ifndef UI_OZONE_DEMO_SKIA_RENDERER_H_
+#define UI_OZONE_DEMO_SKIA_RENDERER_H_
+
+#include "base/containers/queue.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/synchronization/condition_variable.h"
+#include "base/synchronization/lock.h"
+#include "base/threading/simple_thread.h"
+#include "third_party/skia/include/core/SkDeferredDisplayListRecorder.h"
+#include "third_party/skia/include/core/SkSurface.h"
+#include "third_party/skia/include/gpu/GrContext.h"
+#include "ui/gfx/swap_result.h"
+#include "ui/ozone/demo/renderer_base.h"
+
+namespace gfx {
+struct PresentationFeedback;
+} // namespace gfx
+
+namespace gl {
+class GLContext;
+class GLSurface;
+} // namespace gl
+
+namespace ui {
+
+class SkiaRenderer : public RendererBase,
+ public base::DelegateSimpleThread::Delegate {
+ public:
+ SkiaRenderer(gfx::AcceleratedWidget widget,
+ const scoped_refptr<gl::GLSurface>& surface,
+ const gfx::Size& size);
+ ~SkiaRenderer() override;
+
+ // Renderer:
+ bool Initialize() override;
+
+ protected:
+ virtual void RenderFrame();
+ virtual void PostRenderFrameTask(gfx::SwapResult result);
+
+ void Draw(SkCanvas* canvas, float fraction);
+ void StartDDLRenderThreadIfNecessary(SkSurface* sk_surface);
+ void StopDDLRenderThread();
+ std::unique_ptr<SkDeferredDisplayList> GetDDL();
+
+ scoped_refptr<gl::GLSurface> gl_surface_;
+ scoped_refptr<gl::GLContext> gl_context_;
+
+ sk_sp<GrContext> gr_context_;
+ const bool use_ddl_;
+
+ private:
+ // base::DelegateSimpleThread::Delegate:
+ void Run() override;
+
+ void OnPresentation(const gfx::PresentationFeedback& feedback);
+
+ sk_sp<SkSurface> sk_surface_;
+
+ float rotation_angle_ = 0.f;
+
+ std::unique_ptr<base::SimpleThread> ddl_render_thread_;
+
+ // The lock to protect |surface_charaterization_| and |ddls_|.
+ base::Lock lock_;
+
+ // The condition variable for signalling change of |ddls_|.
+ base::ConditionVariable condition_variable_;
+
+ SkSurfaceCharacterization surface_charaterization_;
+ base::queue<std::unique_ptr<SkDeferredDisplayList>> ddls_;
+
+ base::WeakPtrFactory<SkiaRenderer> weak_ptr_factory_;
+
+ DISALLOW_COPY_AND_ASSIGN(SkiaRenderer);
+};
+
+} // namespace ui
+
+#endif // UI_OZONE_DEMO_SKIA_RENDERER_H_