Appropriate handling for Cellular First devices.

chromeos/dbus/update_engine_client.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.
 
 #ifndef CHROMEOS_DBUS_UPDATE_ENGINE_CLIENT_H_
 #define CHROMEOS_DBUS_UPDATE_ENGINE_CLIENT_H_
 
 #include <stdint.h>
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "chromeos/chromeos_export.h"
 #include "chromeos/dbus/dbus_client.h"
 #include "chromeos/dbus/dbus_client_implementation_type.h"
+#include "dbus/message.h"
 #include "third_party/cros_system_api/dbus/update_engine/dbus-constants.h"
 
 namespace chromeos {
 
 // UpdateEngineClient is used to communicate with the update engine.
 class CHROMEOS_EXPORT UpdateEngineClient : public DBusClient {
  public:
   // Edges for state machine
   //    IDLE->CHECKING_FOR_UPDATE
   //    CHECKING_FOR_UPDATE->IDLE
@@ skipping 107 matching lines @@
                           const GetChannelCallback& callback) = 0;
 
   // Called once GetEolStatus() is complete. Takes one parameter;
   // - EndOfLife Status: the end of life status of the device.
   typedef base::Callback<void(update_engine::EndOfLifeStatus status)>
       GetEolStatusCallback;
 
   // Get EndOfLife status of the device and calls |callback| when completed.
   virtual void GetEolStatus(const GetEolStatusCallback& callback) = 0;
 
+  // Either allow or disallow receiving updates over cellular connections.
+  // Synchronous (blocking) method.
+  virtual std::unique_ptr<dbus::Response> SetUpdateOverCellularPermission(
+      bool allowed);
+
   // Returns an empty UpdateCheckCallback that does nothing.
   static UpdateCheckCallback EmptyUpdateCheckCallback();
 
   // Creates the instance.
   static UpdateEngineClient* Create(DBusClientImplementationType type);
 
   // Returns true if |target_channel| is more stable than |current_channel|.
   static bool IsTargetChannelMoreStable(const std::string& current_channel,
                                         const std::string& target_channel);
 
  protected:
   // Create() should be used instead.
   UpdateEngineClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(UpdateEngineClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_UPDATE_ENGINE_CLIENT_H_