[Sync] Move //sync to //components/sync.

sync/internal_api/debug_info_event_listener.h

-// Copyright 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.
-
-#ifndef SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_
-#define SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_
-
-#include <deque>
-#include <string>
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-#include "sync/base/sync_export.h"
-#include "sync/internal_api/public/base/model_type.h"
-#include "sync/internal_api/public/data_type_debug_info_listener.h"
-#include "sync/internal_api/public/sessions/sync_session_snapshot.h"
-#include "sync/internal_api/public/sync_encryption_handler.h"
-#include "sync/internal_api/public/sync_manager.h"
-#include "sync/internal_api/public/util/weak_handle.h"
-#include "sync/js/js_backend.h"
-#include "sync/protocol/sync.pb.h"
-#include "sync/sessions/debug_info_getter.h"
-
-namespace syncer {
-
-// In order to track datatype association results, we need at least as many
-// entries as datatypes. Reserve additional space for other kinds of events that
-// are likely to happen during first sync or startup.
-const unsigned int kMaxEntries = MODEL_TYPE_COUNT + 10;
-
-// Listens to events and records them in a queue. And passes the events to
-// syncer when requested.
-// This class is not thread safe and should only be accessed on the sync thread.
-class SYNC_EXPORT DebugInfoEventListener
-    : public SyncManager::Observer,
-      public SyncEncryptionHandler::Observer,
-      public sessions::DebugInfoGetter,
-      public DataTypeDebugInfoListener {
- public:
-  DebugInfoEventListener();
-  ~DebugInfoEventListener() override;
-
-  // SyncManager::Observer implementation.
-  void OnSyncCycleCompleted(
-      const sessions::SyncSessionSnapshot& snapshot) override;
-  void OnInitializationComplete(
-      const WeakHandle<JsBackend>& js_backend,
-      const WeakHandle<DataTypeDebugInfoListener>& debug_listener,
-      bool success,
-      ModelTypeSet restored_types) override;
-  void OnConnectionStatusChange(ConnectionStatus connection_status) override;
-  void OnActionableError(const SyncProtocolError& sync_error) override;
-  void OnMigrationRequested(ModelTypeSet types) override;
-  void OnProtocolEvent(const ProtocolEvent& event) override;
-
-  // SyncEncryptionHandler::Observer implementation.
-  void OnPassphraseRequired(
-      PassphraseRequiredReason reason,
-      const sync_pb::EncryptedData& pending_keys) override;
-  void OnPassphraseAccepted() override;
-  void OnBootstrapTokenUpdated(const std::string& bootstrap_token,
-                               BootstrapTokenType type) override;
-  void OnEncryptedTypesChanged(ModelTypeSet encrypted_types,
-                               bool encrypt_everything) override;
-  void OnEncryptionComplete() override;
-  void OnCryptographerStateChanged(Cryptographer* cryptographer) override;
-  void OnPassphraseTypeChanged(PassphraseType type,
-                               base::Time explicit_passphrase_time) override;
-  void OnLocalSetPassphraseEncryption(
-      const SyncEncryptionHandler::NigoriState& nigori_state) override;
-
-  // Sync manager events.
-  void OnNudgeFromDatatype(ModelType datatype);
-
-  // DebugInfoGetter implementation.
-  void GetDebugInfo(sync_pb::DebugInfo* debug_info) override;
-
-  // DebugInfoGetter implementation.
-  void ClearDebugInfo() override;
-
-  // DataTypeDebugInfoListener implementation.
-  void OnDataTypeConfigureComplete(
-      const std::vector<DataTypeConfigurationStats>& configuration_stats)
-      override;
-
-  // Returns a weak pointer to this object.
-  base::WeakPtr<DataTypeDebugInfoListener> GetWeakPtr();
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyEventsAdded);
-  FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyQueueSize);
-  FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyGetEvents);
-  FRIEND_TEST_ALL_PREFIXES(DebugInfoEventListenerTest, VerifyClearEvents);
-
-  void AddEventToQueue(const sync_pb::DebugEventInfo& event_info);
-  void CreateAndAddEvent(sync_pb::SyncEnums::SingletonDebugEventType type);
-
-  typedef std::deque<sync_pb::DebugEventInfo> DebugEventInfoQueue;
-  DebugEventInfoQueue events_;
-
-  // True indicates we had to drop one or more events to keep our limit of
-  // |kMaxEntries|.
-  bool events_dropped_;
-
-  // Cryptographer has keys that are not yet decrypted.
-  bool cryptographer_has_pending_keys_;
-
-  // Cryptographer is initialized and does not have pending keys.
-  bool cryptographer_ready_;
-
-  base::ThreadChecker thread_checker_;
-
-  base::WeakPtrFactory<DebugInfoEventListener> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(DebugInfoEventListener);
-};
-
-}  // namespace syncer
-
-#endif  // SYNC_INTERNAL_API_DEBUG_INFO_EVENT_LISTENER_H_