chromium/content/public/test/hit_test_region_observer.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_TEST_HIT_TEST_REGION_OBSERVER_H_
#define CONTENT_PUBLIC_TEST_HIT_TEST_REGION_OBSERVER_H_

#include <memory>
#include <vector>

#include "base/run_loop.h"
#include "components/viz/common/hit_test/aggregated_hit_test_region.h"
#include "components/viz/common/hit_test/hit_test_region_observer.h"
#include "components/viz/common/surfaces/frame_sink_id.h"

namespace content {
class RenderFrameHost;
class WebContents;

// Waits until hit test data for |child_frame| or |guest_web_contents| has been
// submitted, see HitTestRegionObserver::WaitForHitTestData().
void WaitForHitTestData(RenderFrameHost* child_frame);
void WaitForHitTestData(WebContents* guest_web_contents);

// TODO(jonross): Move this to components/viz/host/hit_test/ as a standalone
// HitTestDataWaiter (is-a HitTestRegionObserver) once Viz HitTesting is on by
// default, and there are no longer dependancies upon content.
//
// Test API which observes the arrival / change of hit test data within a Viz
// host.
//
// HitTestRegionObserver is bound to a viz::FrameSinkId for which it observers
// changes in hit test data.
class HitTestRegionObserver : public viz::HitTestRegionObserver { … };

}  // namespace content

#endif  // CONTENT_PUBLIC_TEST_HIT_TEST_REGION_OBSERVER_H_