chrome/browser/browser_process_impl.h

// Copyright (c) 2012 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.

// When each service is created, we set a flag indicating this. At this point,
// the service initialization could fail or succeed. This allows us to remember
// if we tried to create a service, and not try creating it over and over if
// the creation failed.

#ifndef CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_
#define CHROME_BROWSER_BROWSER_PROCESS_IMPL_H_

#include <stdint.h>

#include <memory>
#include <string>

#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/sequence_checker.h"
#include "base/timer/timer.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "chrome/browser/browser_process.h"
#include "chrome/common/buildflags.h"
#include "components/keep_alive_registry/keep_alive_state_observer.h"
#include "components/metrics_services_manager/metrics_services_manager.h"
#include "components/nacl/common/buildflags.h"
#include "components/prefs/persistent_pref_store.h"
#include "components/prefs/pref_change_registrar.h"
#include "extensions/buildflags/buildflags.h"
#include "media/media_buildflags.h"
#include "ppapi/buildflags/buildflags.h"
#include "printing/buildflags/buildflags.h"
#include "services/network/public/cpp/network_quality_tracker.h"
#include "services/network/public/mojom/network_service.mojom-forward.h"

#if !defined(OS_ANDROID)
#include "chrome/browser/upgrade_detector/build_state.h"
#endif

class BatteryMetrics;
class ChromeMetricsServicesManagerClient;
class DevToolsAutoOpener;
class RemoteDebuggingServer;
class PrefRegistrySimple;
class SecureOriginPrefsObserver;
class SiteIsolationPrefsObserver;
class SystemNotificationHelper;
class StartupData;

#if BUILDFLAG(ENABLE_PLUGINS)
class PluginsResourceService;
#endif

namespace base {
class CommandLine;
}

namespace extensions {
class ExtensionsBrowserClient;
}

namespace gcm {
class GCMDriver;
}

namespace policy {
class ChromeBrowserPolicyConnector;
class PolicyService;
}  // namespace policy

namespace webrtc_event_logging {
class WebRtcEventLogManager;
}  // namespace webrtc_event_logging

// Real implementation of BrowserProcess that creates and returns the services.
class BrowserProcessImpl : public BrowserProcess,
                           public KeepAliveStateObserver {
 public:
  // |startup_data| should not be null. The BrowserProcessImpl
  // will take the PrefService owned by the creator as the Local State instead
  // of loading the JSON file from disk.
  explicit BrowserProcessImpl(StartupData* startup_data);
  ~BrowserProcessImpl() override;

  // Called to complete initialization.
  void Init();

#if !defined(OS_ANDROID)
  // Sets a closure to be run to break out of a run loop on browser shutdown
  // (when the KeepAlive count reaches zero).
  // TODO(https://crbug.com/845966): This is also used on macOS for the Cocoa
  // first run dialog so that shutdown can be initiated via a signal while the
  // first run dialog is showing.
  void SetQuitClosure(base::OnceClosure quit_closure);
#endif

#if defined(OS_MAC)
  // Clears the quit closure. Shutdown will not be initiated should the
  // KeepAlive count reach zero. This function may be called more than once.
  // TODO(https://crbug.com/845966): Remove this once the Cocoa first run
  // dialog no longer needs it.
  void ClearQuitClosure();
#endif

  // Called before the browser threads are created.
  void PreCreateThreads(const base::CommandLine& command_line);

  // Called after the threads have been created but before the message loops
  // starts running. Allows the browser process to do any initialization that
  // requires all threads running.
  void PreMainMessageLoopRun();

  // Most cleanup is done by these functions, driven from
  // ChromeBrowserMain based on notifications from the content
  // framework, rather than in the destructor, so that we can
  // interleave cleanup with threads being stopped.
#if !defined(OS_ANDROID)
  void StartTearDown();
  void PostDestroyThreads();
#endif