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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PAGE_LOAD_METRICS_BROWSER_METRICS_NAVIGATION_THROTTLE_H_
#define COMPONENTS_PAGE_LOAD_METRICS_BROWSER_METRICS_NAVIGATION_THROTTLE_H_
#include "content/public/browser/navigation_throttle.h"
#include "content/public/browser/navigation_throttle_registry.h"
namespace page_load_metrics {
// This class is used to forward calls to the MetricsWebContentsObserver.
// Namely, WillStartRequest() is called on NavigationThrottles, but not on
// WebContentsObservers.
class MetricsNavigationThrottle : public content::NavigationThrottle {
public:
static void CreateAndAdd(content::NavigationThrottleRegistry& registry);
MetricsNavigationThrottle(const MetricsNavigationThrottle&) = delete;
MetricsNavigationThrottle& operator=(const MetricsNavigationThrottle&) =
delete;
~MetricsNavigationThrottle() override;
// content::NavigationThrottle:
content::NavigationThrottle::ThrottleCheckResult WillStartRequest() override;
content::NavigationThrottle::ThrottleCheckResult WillProcessResponse()
override;
const char* GetNameForLogging() override;
private:
explicit MetricsNavigationThrottle(
content::NavigationThrottleRegistry& registry);
};
} // namespace page_load_metrics
#endif // COMPONENTS_PAGE_LOAD_METRICS_BROWSER_METRICS_NAVIGATION_THROTTLE_H_
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