diff --git a/buffet/privet/cloud_delegate.h b/buffet/privet/cloud_delegate.h
new file mode 100644
index 0000000..0d027f9
--- /dev/null
+++ b/buffet/privet/cloud_delegate.h
@@ -0,0 +1,143 @@
+// Copyright 2014 The Chromium OS 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 BUFFET_PRIVET_CLOUD_DELEGATE_H_
+#define BUFFET_PRIVET_CLOUD_DELEGATE_H_
+
+#include <memory>
+#include <set>
+#include <string>
+
+#include <base/callback.h>
+#include <base/memory/ref_counted.h>
+#include <base/observer_list.h>
+
+#include "buffet/privet/privet_types.h"
+#include "buffet/privet/security_delegate.h"
+
+namespace base {
+class DictionaryValue;
+}  // namespace base
+
+namespace dbus {
+class Bus;
+}  // namespace dbus
+
+namespace privetd {
+
+// Interface to provide GCD functionality for PrivetHandler.
+// TODO(vitalybuka): Rename to BuffetDelegate.
+class CloudDelegate {
+ public:
+  CloudDelegate();
+  virtual ~CloudDelegate();
+
+  using SuccessCallback = base::Callback<void(const base::DictionaryValue&)>;
+  using ErrorCallback = base::Callback<void(chromeos::Error*)>;
+
+  class Observer {
+   public:
+    virtual ~Observer() = default;
+
+    virtual void OnDeviceInfoChanged() {}
+    virtual void OnCommandDefsChanged() {}
+    virtual void OnStateChanged() {}
+  };
+
+  // Returns the model ID of the device.
+  virtual bool GetModelId(std::string* id, chromeos::ErrorPtr* error) const = 0;
+
+  // Returns the name of device.
+  virtual bool GetName(std::string* name, chromeos::ErrorPtr* error) const = 0;
+
+  // Returns the description of the device.
+  virtual std::string GetDescription() const = 0;
+
+  // Returns the location of the device.
+  virtual std::string GetLocation() const = 0;
+
+  // Update basic device information.
+  virtual void UpdateDeviceInfo(const std::string& name,
+                                const std::string& description,
+                                const std::string& location,
+                                const base::Closure& success_callback,
+                                const ErrorCallback& error_callback) = 0;
+
+  // Returns the name of the maker.
+  virtual std::string GetOemName() const = 0;
+
+  // Returns the model name of the device.
+  virtual std::string GetModelName() const = 0;
+
+  // Returns the list of services supported by device.
+  // E.g. printer, scanner etc. Should match services published on mDNS.
+  virtual std::set<std::string> GetServices() const = 0;
+
+  // Returns max scope available for anonymous user.
+  virtual AuthScope GetAnonymousMaxScope() const = 0;
+
+  // Returns status of the GCD connection.
+  virtual const ConnectionState& GetConnectionState() const = 0;
+
+  // Returns status of the last setup.
+  virtual const SetupState& GetSetupState() const = 0;
+
+  // Starts GCD setup.
+  virtual bool Setup(const std::string& ticket_id,
+                     const std::string& user,
+                     chromeos::ErrorPtr* error) = 0;
+
+  // Returns cloud id if the registered device or empty string if unregistered.
+  virtual std::string GetCloudId() const = 0;
+
+  // Returns dictionary with device state.
+  virtual const base::DictionaryValue& GetState() const = 0;
+
+  // Returns dictionary with commands definitions.
+  virtual const base::DictionaryValue& GetCommandDef() const = 0;
+
+  // Adds command created from the given JSON representation.
+  virtual void AddCommand(const base::DictionaryValue& command,
+                          const UserInfo& user_info,
+                          const SuccessCallback& success_callback,
+                          const ErrorCallback& error_callback) = 0;
+
+  // Returns command with the given ID.
+  virtual void GetCommand(const std::string& id,
+                          const UserInfo& user_info,
+                          const SuccessCallback& success_callback,
+                          const ErrorCallback& error_callback) = 0;
+
+  // Cancels command with the given ID.
+  virtual void CancelCommand(const std::string& id,
+                             const UserInfo& user_info,
+                             const SuccessCallback& success_callback,
+                             const ErrorCallback& error_callback) = 0;
+
+  // Lists commands.
+  virtual void ListCommands(const UserInfo& user_info,
+                            const SuccessCallback& success_callback,
+                            const ErrorCallback& error_callback) = 0;
+
+  void AddObserver(Observer* observer) { observer_list_.AddObserver(observer); }
+  void RemoveObserver(Observer* observer) {
+    observer_list_.RemoveObserver(observer);
+  }
+
+  void NotifyOnDeviceInfoChanged();
+  void NotifyOnCommandDefsChanged();
+  void NotifyOnStateChanged();
+
+  // Create default instance.
+  static std::unique_ptr<CloudDelegate> CreateDefault(
+      const scoped_refptr<dbus::Bus>& bus,
+      bool is_gcd_setup_enabled);
+
+ private:
+  ObserverList<Observer> observer_list_;
+};
+
+}  // namespace privetd
+
+#endif  // BUFFET_PRIVET_CLOUD_DELEGATE_H_