chromium/cc/layers/surface_layer.h

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_LAYERS_SURFACE_LAYER_H_
#define CC_LAYERS_SURFACE_LAYER_H_

#include <memory>

#include "cc/cc_export.h"
#include "cc/layers/deadline_policy.h"
#include "cc/layers/layer.h"
#include "components/viz/common/surfaces/surface_info.h"
#include "components/viz/common/surfaces/surface_range.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/geometry/size.h"

namespace base {
class WaitableEvent;
}

namespace cc {

// If given true, we should submit frames, as we are unoccluded on screen.
// If given false, we should not submit compositor frames.
// The second parameter is only used in tests to ensure that the
// UpdateSubmissionStateCB is called synchronously relative to the calling
// thread. That is, the calling thread will block on the given waitable event
// when calling the callback. It is the responsibility of the callback to signal
// the event once the state has been updated. If blocking is not required, then
// the second parameter will be nullptr.
UpdateSubmissionStateCB;

// A layer that renders a surface referencing the output of another compositor
// instance or client.
class CC_EXPORT SurfaceLayer : public Layer { … };

}  // namespace cc

#endif  // CC_LAYERS_SURFACE_LAYER_H_