Make update over cellular an option for user

chromeos/dbus/fake_update_engine_client.cc

 // 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.
 
 #include "chromeos/dbus/fake_update_engine_client.h"
 
 #include "base/bind.h"
 #include "base/threading/thread_task_runner_handle.h"
 
 namespace chromeos {
@@ skipping 75 matching lines @@
       FROM_HERE,
       base::Bind(callback, update_engine::EndOfLifeStatus::kSupported));
 }
 
 void FakeUpdateEngineClient::SetUpdateOverCellularPermission(
     bool allowed,
     const base::Closure& callback) {
   base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, callback);
 }
 
+void FakeUpdateEngineClient::SetUpdateOverCellularTarget(
+    const std::string& target_version,
+    int64_t target_size,
+    const SetTargetCallback& callback) {
+  // Do nothing.

[Daniel Erat, 2017/05/12 13:37:03]

nit: delete this comment. "{}" makes it clear you're doing nothing. :-P

[weidongg, 2017/05/12 16:33:16]

Done.

+}
+
 void FakeUpdateEngineClient::set_default_status(
     const UpdateEngineClient::Status& status) {
   default_status_ = status;
 }
 
 void FakeUpdateEngineClient::set_update_check_result(
     const UpdateEngineClient::UpdateCheckResult& result) {
   update_check_result_ = result;
 }
 
 }  // namespace chromeos