Created multi-process-friendly PowerMonitor interface.

base/power_monitor/power_monitor_test_base.cc

+// Copyright 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 "base/power_monitor/power_monitor_test_base.h"
+
+#include "base/message_loop.h"
+#include "base/power_monitor/power_monitor.h"
+#include "base/power_monitor/power_monitor_source.h"
+
+namespace base {
+
+PowerMonitorTestSource::PowerMonitorTestSource()
+    : test_on_battery_power_(false) {
+}
+
+PowerMonitorTestSource::~PowerMonitorTestSource() {
+}
+
+void PowerMonitorTestSource::GeneratePowerStateEvent(bool on_battery_power) {
+  test_on_battery_power_ = on_battery_power;
+  ProcessPowerEvent(POWER_STATE_EVENT);
+  message_loop_.RunUntilIdle();
+}
+
+void PowerMonitorTestSource::GenerateSuspendEvent() {
+  ProcessPowerEvent(SUSPEND_EVENT);
+  message_loop_.RunUntilIdle();
+}
+
+void PowerMonitorTestSource::GenerateResumeEvent() {
+  ProcessPowerEvent(RESUME_EVENT);
+  message_loop_.RunUntilIdle();
+}
+
+ bool PowerMonitorTestSource::IsOnBatteryPowerImpl() {

[jar (doing other things), 2013/07/16 17:15:33]

nit: undent

+  return test_on_battery_power_;
+};
+
+PowerMonitorTestObserver::PowerMonitorTestObserver()
+    : last_power_state_(false),
+      power_state_changes_(0),
+      suspends_(0),
+      resumes_(0) {
+}
+
+PowerMonitorTestObserver::~PowerMonitorTestObserver() {
+}
+
+// PowerObserver callbacks.
+void PowerMonitorTestObserver::OnPowerStateChange(bool on_battery_power) {
+  last_power_state_ = on_battery_power;
+  power_state_changes_++;
+}
+
+void PowerMonitorTestObserver::OnSuspend() {
+  suspends_++;
+}
+
+void PowerMonitorTestObserver::OnResume() {
+  resumes_++;
+}
+
+}  // namespace base