Created multi-process-friendly PowerMonitor interface.

base/power_monitor/power_monitor_device_source_android.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_device_source_android.h"
+
 #include "base/power_monitor/power_monitor.h"
+#include "base/power_monitor/power_monitor_device_source.h"
+#include "base/power_monitor/power_monitor_source.h"
 #include "jni/PowerMonitor_jni.h"
 
 namespace base {
 
-// A helper function which is a friend of PowerMonitor.
-void ProcessPowerEventHelper(PowerMonitor::PowerEvent event) {
-  if (base::PowerMonitor::Get())
-    base::PowerMonitor::Get()->ProcessPowerEvent(event);
+// A helper function which is a friend of PowerMonitorSource.
+void ProcessPowerEventHelper(PowerMonitorSource::PowerEvent event) {
+  PowerMonitorSource::ProcessPowerEvent(event);
 }
 
 namespace android {
 
 // Native implementation of PowerMonitor.java.
 void OnBatteryChargingChanged(JNIEnv* env, jclass clazz) {
-  ProcessPowerEventHelper(PowerMonitor::POWER_STATE_EVENT);
+  ProcessPowerEventHelper(PowerMonitorSource::POWER_STATE_EVENT);
 }
 
 void OnMainActivityResumed(JNIEnv* env, jclass clazz) {
-  ProcessPowerEventHelper(PowerMonitor::RESUME_EVENT);
+  ProcessPowerEventHelper(PowerMonitorSource::RESUME_EVENT);
 }
 
 void OnMainActivitySuspended(JNIEnv* env, jclass clazz) {
-  ProcessPowerEventHelper(PowerMonitor::SUSPEND_EVENT);
+  ProcessPowerEventHelper(PowerMonitorSource::SUSPEND_EVENT);
 }
 
 }  // namespace android
 
-bool PowerMonitor::IsBatteryPower() {
+bool PowerMonitorDeviceSource::IsOnBatteryPowerImpl() {
   JNIEnv* env = base::android::AttachCurrentThread();
   return base::android::Java_PowerMonitor_isBatteryPower(env);
 }
 
 bool RegisterPowerMonitor(JNIEnv* env) {
   return base::android::RegisterNativesImpl(env);
 }
 
 }  // namespace base