Revert of Move some sync/notifier to components/invalidation

sync/notifier/push_client_channel.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_NOTIFIER_PUSH_CLIENT_CHANNEL_H_
+#define SYNC_NOTIFIER_PUSH_CLIENT_CHANNEL_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "jingle/notifier/listener/push_client_observer.h"
+#include "sync/base/sync_export.h"
+#include "sync/notifier/sync_system_resources.h"
+
+namespace notifier {
+class PushClient;
+}  // namespace notifier
+
+namespace syncer {
+
+// A PushClientChannel is an implementation of NetworkChannel that
+// routes messages through a PushClient.
+class SYNC_EXPORT_PRIVATE PushClientChannel
+    : public SyncNetworkChannel,
+      public NON_EXPORTED_BASE(notifier::PushClientObserver) {
+ public:
+  // |push_client| is guaranteed to be destroyed only when this object
+  // is destroyed.
+  explicit PushClientChannel(scoped_ptr<notifier::PushClient> push_client);
+
+  virtual ~PushClientChannel();
+
+  // invalidation::NetworkChannel implementation.
+  virtual void SendMessage(const std::string& message) OVERRIDE;
+  virtual void RequestDetailedStatus(
+      base::Callback<void(const base::DictionaryValue&)> callback) OVERRIDE;
+
+  // SyncNetworkChannel implementation.
+  // If not connected, connects with the given credentials.  If
+  // already connected, the next connection attempt will use the given
+  // credentials.
+  virtual void UpdateCredentials(const std::string& email,
+      const std::string& token) OVERRIDE;
+  virtual int GetInvalidationClientType() OVERRIDE;
+
+  // notifier::PushClient::Observer implementation.
+  virtual void OnNotificationsEnabled() OVERRIDE;
+  virtual void OnNotificationsDisabled(
+      notifier::NotificationsDisabledReason reason) OVERRIDE;
+  virtual void OnIncomingNotification(
+      const notifier::Notification& notification) OVERRIDE;
+
+  const std::string& GetServiceContextForTest() const;
+
+  int64 GetSchedulingHashForTest() const;
+
+  static std::string EncodeMessageForTest(const std::string& message,
+                                          const std::string& service_context,
+                                          int64 scheduling_hash);
+
+  static bool DecodeMessageForTest(const std::string& notification,
+                                   std::string* message,
+                                   std::string* service_context,
+                                   int64* scheduling_hash);
+
+ private:
+  static void EncodeMessage(std::string* encoded_message,
+                            const std::string& message,
+                            const std::string& service_context,
+                            int64 scheduling_hash);
+  static bool DecodeMessage(const std::string& data,
+                            std::string* message,
+                            std::string* service_context,
+                            int64* scheduling_hash);
+  scoped_ptr<base::DictionaryValue> CollectDebugData() const;
+
+  scoped_ptr<notifier::PushClient> push_client_;
+  std::string service_context_;
+  int64 scheduling_hash_;
+
+  // This count is saved for displaying statatistics.
+  int sent_messages_count_;
+
+  DISALLOW_COPY_AND_ASSIGN(PushClientChannel);
+};
+
+}  // namespace syncer
+
+#endif  // SYNC_NOTIFIER_PUSH_CLIENT_CHANNEL_H_