Rewrite the Android implementation of BatteryMonitor directly in Java.

content/browser/mojo/service_registrar_android.cc

+// Copyright 2014 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/mojo/service_registrar_android.h"
+
+#include "base/android/jni_android.h"
+#include "content/browser/mojo/service_registry_android.h"
+#include "jni/ServiceRegistrar_jni.h"
+
+namespace content {
+
+// static
+bool ServiceRegistrarAndroid::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+// static
+void ServiceRegistrarAndroid::RegisterProcessHostServices(
+    ServiceRegistryAndroid* registry) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_ServiceRegistrar_registerProcessHostServices(env,
+                                                    registry->GetObj().obj());
+}
+
+}  // namespace content