chromeos: Don't send empty power management policies.

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 "chromeos/dbus/power_manager/policy.pb.h"
 
 namespace chromeos {
 
 FakePowerManagerClient::FakePowerManagerClient()
-    : request_restart_call_count_(0) {
+    : request_restart_call_count_(0),
+      set_policy_call_count_(0) {
 }
 
 FakePowerManagerClient::~FakePowerManagerClient() {
 }
 
 void FakePowerManagerClient::Init(dbus::Bus* bus) {
 }
 
 void FakePowerManagerClient::AddObserver(Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void FakePowerManagerClient::RemoveObserver(Observer* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void FakePowerManagerClient::RequestStatusUpdate() {
 }
 
 void FakePowerManagerClient::SetPolicy(
     const power_manager::PowerManagementPolicy& policy) {
   policy_ = policy;
+  ++set_policy_call_count_;
 }
 
 void FakePowerManagerClient::RequestShutdown() {
 }
 
 void FakePowerManagerClient::DecreaseScreenBrightness(bool allow_off) {
 }
 
 void FakePowerManagerClient::SetScreenBrightnessPercent(double percent,
                                                         bool gradual) {
@@ skipping 51 matching lines @@
       last_suspend_wall_time_ = wall_time;
       break;
     case power_manager::SuspendState_Type_RESUME:
       FOR_EACH_OBSERVER(Observer, observers_,
                         SystemResumed(wall_time - last_suspend_wall_time_));
       break;
   }
 }
 
 } // namespace chromeos