[BackgroundSync Cleanup] Remove power observer

content/browser/background_sync/background_sync_power_observer_unittest.cc

-// Copyright 2015 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 <content/browser/background_sync/background_sync_power_observer.h>
-
-#include "base/macros.h"
-#include "base/run_loop.h"
-#include "base/test/power_monitor_test_base.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace content {
-
-namespace {
-
-class BackgroundSyncPowerObserverTest : public testing::Test {
- protected:
-  BackgroundSyncPowerObserverTest() : power_changed_count_(0) {
-    power_monitor_source_ = new base::PowerMonitorTestSource();
-    power_monitor_.reset(new base::PowerMonitor(
-        scoped_ptr<base::PowerMonitorSource>(power_monitor_source_)));
-    power_observer_.reset(new BackgroundSyncPowerObserver(
-        base::Bind(&BackgroundSyncPowerObserverTest::OnPowerChanged,
-                   base::Unretained(this))));
-  }
-
-  void SetOnBatteryPower(bool on_battery_power) {
-    power_monitor_source_->GeneratePowerStateEvent(on_battery_power);
-  }
-
-  void OnPowerChanged() { power_changed_count_++; }
-
-  // power_monitor_source_ is owned by power_monitor_
-  base::PowerMonitorTestSource* power_monitor_source_;
-  scoped_ptr<base::PowerMonitor> power_monitor_;
-  scoped_ptr<BackgroundSyncPowerObserver> power_observer_;
-  int power_changed_count_;
-
-  DISALLOW_COPY_AND_ASSIGN(BackgroundSyncPowerObserverTest);
-};
-
-TEST_F(BackgroundSyncPowerObserverTest, PowerChangeInvokesCallback) {
-  SetOnBatteryPower(true);
-  power_changed_count_ = 0;
-
-  SetOnBatteryPower(false);
-  EXPECT_EQ(1, power_changed_count_);
-  SetOnBatteryPower(true);
-  EXPECT_EQ(2, power_changed_count_);
-  SetOnBatteryPower(true);
-  EXPECT_EQ(2, power_changed_count_);
-}
-
-TEST_F(BackgroundSyncPowerObserverTest, PowerSufficientAuto) {
-  SetOnBatteryPower(false);
-  EXPECT_TRUE(power_observer_->PowerSufficient(POWER_STATE_AUTO));
-
-  SetOnBatteryPower(true);
-  EXPECT_TRUE(power_observer_->PowerSufficient(POWER_STATE_AUTO));
-}
-
-TEST_F(BackgroundSyncPowerObserverTest, PowerSufficientAvoidDraining) {
-  SetOnBatteryPower(false);
-  EXPECT_TRUE(power_observer_->PowerSufficient(POWER_STATE_AVOID_DRAINING));
-
-  SetOnBatteryPower(true);
-  EXPECT_FALSE(power_observer_->PowerSufficient(POWER_STATE_AVOID_DRAINING));
-}
-
-}  // namespace
-
-}  // namespace content