Revert "Delete the Surfaces service."

examples/surfaces_app/child_impl.h

+// Copyright 2014 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 EXAMPLES_SURFACES_APP_CHILD_IMPL_H_
+#define EXAMPLES_SURFACES_APP_CHILD_IMPL_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "cc/surfaces/surface_id.h"
+#include "cc/surfaces/surface_id_allocator.h"
+#include "examples/surfaces_app/child.mojom.h"
+#include "mojo/public/cpp/bindings/string.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "mojo/services/surfaces/interfaces/surface_id.mojom.h"
+#include "mojo/services/surfaces/interfaces/surfaces.mojom.h"
+#include "third_party/skia/include/core/SkColor.h"
+#include "ui/gfx/size.h"
+
+namespace cc {
+class CompositorFrame;
+}
+
+namespace mojo {
+
+class ApplicationConnection;
+
+namespace examples {
+
+// Simple example of a child app using surfaces.
+class ChildImpl : public Child {
+ public:
+  class Context {
+   public:
+    virtual ApplicationConnection* ShellConnection(
+        const mojo::String& application_url) = 0;
+  };
+  ChildImpl(ApplicationConnection* surfaces_service_connection,
+            InterfaceRequest<Child> request);
+  ~ChildImpl() override;
+
+ private:
+  using ProduceCallback = mojo::Callback<void(SurfaceIdPtr id)>;
+
+  void SetIdNamespace(uint32_t id_namespace);
+
+  // Child implementation.
+  void ProduceFrame(ColorPtr color,
+                    SizePtr size,
+                    const ProduceCallback& callback) override;
+
+  scoped_ptr<cc::SurfaceIdAllocator> allocator_;
+  SurfacePtr surface_;
+  uint32_t id_namespace_;
+  StrongBinding<Child> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChildImpl);
+};
+
+}  // namespace examples
+}  // namespace mojo
+
+#endif  // EXAMPLES_SURFACES_APP_CHILD_IMPL_H_