Add a Display and ContextProvider concept to mojom, use to recreate

services/surfaces/display_impl.h

+// Copyright 2015 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 SERVICES_SURFACES_DISPLAY_IMPL_H_
+#define SERVICES_SURFACES_DISPLAY_IMPL_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "cc/surfaces/display_client.h"
+#include "cc/surfaces/surface_factory.h"
+#include "cc/surfaces/surface_factory_client.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "mojo/services/surfaces/public/interfaces/display.mojom.h"
+
+namespace cc {
+class Display;
+class SurfaceFactory;
+}
+
+namespace surfaces {
+
+class DisplayImpl : public mojo::Display,
+                    public mojo::ViewportParameterListener,
+                    public cc::DisplayClient,
+                    public cc::SurfaceFactoryClient {
+ public:
+  class Client {
+   public:
+    virtual void FrameSubmitted() = 0;
+    virtual void OnVSyncParametersUpdated(base::TimeTicks timebase,
+                                          base::TimeDelta interval) = 0;
+    virtual void SetDisplay(cc::Display* display) = 0;
+    virtual void OnDisplayBeingDestroyed(cc::Display* display) = 0;
+  };
+
+  DisplayImpl(cc::SurfaceManager* manager,
+              cc::SurfaceId cc_id,
+              Client* client,
+              mojo::ContextProviderPtr context_provider,
+              mojo::ViewportParameterListenerPtr viewport_parameter_listener,
+              mojo::ResourceReturnerPtr returner,
+              mojo::InterfaceRequest<mojo::Display> display_request);
+  ~DisplayImpl() override;
+
+ private:
+  void OnContextCreated(mojo::CommandBufferPtr gles2_client);
+
+  // mojo::Display implementation:
+  void SubmitFrame(mojo::FramePtr frame,
+                   const SubmitFrameCallback& callback) override;
+
+  // DisplayClient implementation.
+  void DisplayDamaged() override;
+  void DidSwapBuffers() override;
+  void DidSwapBuffersComplete() override;
+  void CommitVSyncParameters(base::TimeTicks timebase,
+                             base::TimeDelta interval) override;
+  void OutputSurfaceLost() override;
+  void SetMemoryPolicy(const cc::ManagedMemoryPolicy& policy) override;
+
+  // ViewportParameterListener
+  void OnVSyncParametersUpdated(int64_t timebase, int64_t interval) override;
+
+  // SurfaceFactoryClient implementation.
+  void ReturnResources(const cc::ReturnedResourceArray& resources) override;
+
+  void Draw();
+
+  cc::SurfaceManager* manager_;
+  cc::SurfaceFactory factory_;
+  cc::SurfaceId cc_id_;
+  Client* client_;
+  mojo::ContextProviderPtr context_provider_;
+  mojo::ResourceReturnerPtr returner_;
+
+  mojo::FramePtr pending_frame_;
+  SubmitFrameCallback pending_callback_;
+
+  scoped_ptr<cc::Display> display_;
+
+  mojo::StrongBinding<mojo::Display> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(DisplayImpl);
+};
+
+}  // namespace surfaces
+
+#endif  // SERVICES_SURFACES_DISPLAY_IMPL_H_