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// Copyright (c) 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 COMPONENTS_BROWSER_WATCHER_WATCHER_METRICS_PROVIDER_WIN_H_
#define COMPONENTS_BROWSER_WATCHER_WATCHER_METRICS_PROVIDER_WIN_H_
#include "base/macros.h"
#include "base/strings/string16.h"
#include "components/metrics/metrics_provider.h"
namespace browser_watcher {
// Provides stability data captured by the Chrome Watcher, namely the browser
// process exit codes, as well as exit funnel metrics.
// The exit funnel records a trace of named, timed events in registry per
// process. For reporting, the trace is recorded as a sequence of events
// named Stability.ExitFunnel.<eventname>, associated to the time
// (in milliseconds) from first event in a trace. For a normal process exit,
// the sequence might look like this:
// - Stability.ExitFunnel.Logoff: 0
// - Stability.ExitFunnel.NotifyShutdown: 10
// - Stability.ExitFunnel.EndSession: 20
// - Stability.ExitFunnel.KillProcess: 30
class WatcherMetricsProviderWin : public metrics::MetricsProvider {
public:
static const char kBrowserExitCodeHistogramName[];
static const char kExitFunnelHistogramPrefix[];
// Initializes the reporter. If |report_exit_funnels| is false, the provider
// will clear the registry data, but not report it.
WatcherMetricsProviderWin(const base::char16* registry_path,
bool report_exit_funnels);
~WatcherMetricsProviderWin();
// metrics::MetricsProvider implementation.
virtual void ProvideStabilityMetrics(
metrics::SystemProfileProto* system_profile_proto) override;
private:
base::string16 registry_path_;
bool report_exit_funnels_;
DISALLOW_COPY_AND_ASSIGN(WatcherMetricsProviderWin);
};
} // namespace browser_watcher
#endif // COMPONENTS_BROWSER_WATCHER_WATCHER_METRICS_PROVIDER_WIN_H_
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