Make [S,G]getBacklightsForcedOff dbus API integrated to power_manager_client

chromeos/dbus/fake_power_manager_client.cc

 // Copyright (c) 2013 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_power_manager_client.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 116 matching lines @@
           !source.active_by_default() || source.max_power() < kUsbMinAcWatts
               ? power_manager::PowerSupplyProperties_ExternalPower_USB
               : power_manager::PowerSupplyProperties_ExternalPower_AC);
       break;
     }
   }
 
   NotifyObservers();
 }
 
+void FakePowerManagerClient::SetBacklightsForcedOff(bool is_off) {}
+
+void FakePowerManagerClient::GetBacklightsForcedOffState(
+    const GetBacklightsForcedOffStateCallback& callback) {}

[Daniel Erat, 2016/10/13 17:25:19]

mind stubbing the implementation of this to make it easier to write tests for
the UI code that will call it? i think you just need to add a
backlights_forced_off_ bool member and then update it in SetBacklightsForcedOff
and do something like this here:

  base::ThreadTaskRunnerHandle::Get()->PostTask(
      FROM_HERE, base::Bind(callback, backlights_forced_off_));

[Qiang(Joe) Xu, 2016/10/13 21:19:40]

Done.

+
 base::Closure FakePowerManagerClient::GetSuspendReadinessCallback() {
   ++num_pending_suspend_readiness_callbacks_;
 
   return base::Bind(&FakePowerManagerClient::HandleSuspendReadiness,
                     base::Unretained(this));
 }
 
 int FakePowerManagerClient::GetNumPendingSuspendReadinessCallbacks() {
   return num_pending_suspend_readiness_callbacks_;
 }
@@ skipping 39 matching lines @@
   FOR_EACH_OBSERVER(Observer, observers_, PowerChanged(props_));
 }
 
 void FakePowerManagerClient::HandleSuspendReadiness() {
   CHECK(num_pending_suspend_readiness_callbacks_ > 0);
 
   --num_pending_suspend_readiness_callbacks_;
 }
 
 }  // namespace chromeos