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// 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 CONTENT_WEB_TEST_BROWSER_LEAK_DETECTOR_H_
#define CONTENT_WEB_TEST_BROWSER_LEAK_DETECTOR_H_
#include <memory>
#include "base/memory/weak_ptr.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/mojom/leak_detector/leak_detector.mojom.h"
namespace content {
class RenderProcessHost;
// LeakDetector counts DOM objects and compare them between two pages.
class LeakDetector {
public:
LeakDetector();
LeakDetector(const LeakDetector&) = delete;
LeakDetector& operator=(const LeakDetector&) = delete;
~LeakDetector();
struct LeakDetectionReport {
bool leaked;
std::string detail;
};
using ReportCallback = base::OnceCallback<void(const LeakDetectionReport&)>;
// Counts DOM objects, compare the previous status and returns the result of
// leak detection. It is assumed that this method is always called when a
// specific page, like about:blank is loaded to compare the previous
// circumstance of DOM objects. If the number of objects increases, there
// should be a leak.
void TryLeakDetection(RenderProcessHost* host, ReportCallback callback);
private:
void OnLeakDetectionComplete(blink::mojom::LeakDetectionResultPtr result);
void OnLeakDetectorIsGone();
mojo::Remote<blink::mojom::LeakDetector> leak_detector_;
blink::mojom::LeakDetectionResultPtr previous_result_;
ReportCallback callback_;
base::WeakPtrFactory<LeakDetector> weak_factory_{this};
};
} // namespace content
#endif // CONTENT_WEB_TEST_BROWSER_LEAK_DETECTOR_H_
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