Revert of Move some sync/notifier to components/invalidation

sync/notifier/non_blocking_invalidator.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.
+//
+// An implementation of SyncNotifier that wraps InvalidationNotifier
+// on its own thread.
+
+#ifndef SYNC_NOTIFIER_NON_BLOCKING_INVALIDATOR_H_
+#define SYNC_NOTIFIER_NON_BLOCKING_INVALIDATOR_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/callback.h"
+#include "base/compiler_specific.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "jingle/notifier/base/notifier_options.h"
+#include "sync/base/sync_export.h"
+#include "sync/notifier/invalidation_state_tracker.h"
+#include "sync/notifier/invalidator.h"
+#include "sync/notifier/invalidator_registrar.h"
+#include "sync/notifier/invalidator_state.h"
+#include "sync/notifier/unacked_invalidation_set.h"
+
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
+
+namespace syncer {
+class SyncNetworkChannel;
+class GCMNetworkChannelDelegate;
+
+// Callback type for function that creates SyncNetworkChannel. This function
+// gets passed into NonBlockingInvalidator constructor.
+typedef base::Callback<scoped_ptr<SyncNetworkChannel>(void)>
+    NetworkChannelCreator;
+
+class SYNC_EXPORT_PRIVATE NonBlockingInvalidator
+    : public Invalidator,
+      public InvalidationStateTracker {
+ public:
+  // |invalidation_state_tracker| must be initialized and must outlive |this|.
+  NonBlockingInvalidator(
+      NetworkChannelCreator network_channel_creator,
+      const std::string& invalidator_client_id,
+      const UnackedInvalidationsMap& saved_invalidations,
+      const std::string& invalidation_bootstrap_data,
+      InvalidationStateTracker* invalidation_state_tracker,
+      const std::string& client_info,
+      const scoped_refptr<net::URLRequestContextGetter>&
+          request_context_getter);
+
+  virtual ~NonBlockingInvalidator();
+
+  // Invalidator implementation.
+  virtual void RegisterHandler(InvalidationHandler* handler) OVERRIDE;
+  virtual void UpdateRegisteredIds(InvalidationHandler* handler,
+                                   const ObjectIdSet& ids) OVERRIDE;
+  virtual void UnregisterHandler(InvalidationHandler* handler) OVERRIDE;
+  virtual InvalidatorState GetInvalidatorState() const OVERRIDE;
+  virtual void UpdateCredentials(
+      const std::string& email, const std::string& token) OVERRIDE;
+  virtual void RequestDetailedStatus(
+      base::Callback<void(const base::DictionaryValue&)> callback) const
+      OVERRIDE;
+
+  // Static functions to construct callback that creates network channel for
+  // SyncSystemResources. The goal is to pass network channel to invalidator at
+  // the same time not exposing channel specific parameters to invalidator and
+  // channel implementation to client of invalidator.
+  static NetworkChannelCreator MakePushClientChannelCreator(
+      const notifier::NotifierOptions& notifier_options);
+  static NetworkChannelCreator MakeGCMNetworkChannelCreator(
+      scoped_refptr<net::URLRequestContextGetter> request_context_getter,
+      scoped_ptr<GCMNetworkChannelDelegate> delegate);
+
+  // These methods are forwarded to the invalidation_state_tracker_.
+  virtual void ClearAndSetNewClientId(const std::string& data) OVERRIDE;
+  virtual std::string GetInvalidatorClientId() const OVERRIDE;
+  virtual void SetBootstrapData(const std::string& data) OVERRIDE;
+  virtual std::string GetBootstrapData() const OVERRIDE;
+  virtual void SetSavedInvalidations(
+      const UnackedInvalidationsMap& states) OVERRIDE;
+  virtual UnackedInvalidationsMap GetSavedInvalidations() const OVERRIDE;
+  virtual void Clear() OVERRIDE;
+
+ private:
+  void OnInvalidatorStateChange(InvalidatorState state);
+  void OnIncomingInvalidation(const ObjectIdInvalidationMap& invalidation_map);
+  std::string GetOwnerName() const;
+
+  friend class NonBlockingInvalidatorTestDelegate;
+
+  struct InitializeOptions;
+  class Core;
+
+  InvalidatorRegistrar registrar_;
+  InvalidationStateTracker* invalidation_state_tracker_;
+
+  // The real guts of NonBlockingInvalidator, which allows this class to live
+  // completely on the parent thread.
+  scoped_refptr<Core> core_;
+  scoped_refptr<base::SingleThreadTaskRunner> parent_task_runner_;
+  scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
+
+  base::WeakPtrFactory<NonBlockingInvalidator> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(NonBlockingInvalidator);
+};
+
+}  // namespace syncer
+
+#endif  // SYNC_NOTIFIER_NON_BLOCKING_INVALIDATOR_H_