Revert of Replace Chrome IPC with Mojo IPC for querying BatteryStatus service

content/browser/battery_status/battery_status_manager_android.cc

Index: content/browser/battery_status/battery_status_manager_android.cc
diff --git a/content/browser/battery_status/battery_status_manager_android.cc b/content/browser/battery_status/battery_status_manager_android.cc
new file mode 100644
index 0000000000000000000000000000000000000000..fc43d4dfe7f029574d7b5529f791a8f182cb54ff
--- /dev/null
+++ b/content/browser/battery_status/battery_status_manager_android.cc
@@ -0,0 +1,65 @@
+// 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/battery_status/battery_status_manager_android.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/scoped_java_ref.h"
+#include "base/metrics/histogram.h"
+#include "jni/BatteryStatusManager_jni.h"
+
+using base::android::AttachCurrentThread;
+
+namespace content {
+
+BatteryStatusManagerAndroid::BatteryStatusManagerAndroid(
+    const BatteryStatusService::BatteryUpdateCallback& callback)
+    : callback_(callback) {
+  j_manager_.Reset(
+      Java_BatteryStatusManager_getInstance(
+          AttachCurrentThread(), base::android::GetApplicationContext()));
+}
+
+BatteryStatusManagerAndroid::~BatteryStatusManagerAndroid() {
+}
+
+// static
+bool BatteryStatusManagerAndroid::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+void BatteryStatusManagerAndroid::GotBatteryStatus(JNIEnv*,
+                                                   jobject,
+                                                   jboolean charging,
+                                                   jdouble charging_time,
+                                                   jdouble discharging_time,
+                                                   jdouble level) {
+  blink::WebBatteryStatus status;
+  status.charging = charging;
+  status.chargingTime = charging_time;
+  status.dischargingTime = discharging_time;
+  status.level = level;
+  callback_.Run(status);
+}
+
+bool BatteryStatusManagerAndroid::StartListeningBatteryChange() {
+  bool result = Java_BatteryStatusManager_start(AttachCurrentThread(),
+      j_manager_.obj(), reinterpret_cast<intptr_t>(this));
+  UMA_HISTOGRAM_BOOLEAN("BatteryStatus.StartAndroid", result);
+  return result;
+}
+
+void BatteryStatusManagerAndroid::StopListeningBatteryChange() {
+  Java_BatteryStatusManager_stop(
+      AttachCurrentThread(), j_manager_.obj());
+}
+
+// static
+scoped_ptr<BatteryStatusManager> BatteryStatusManager::Create(
+    const BatteryStatusService::BatteryUpdateCallback& callback) {
+  return scoped_ptr<BatteryStatusManager>(
+      new BatteryStatusManagerAndroid(callback));
+}
+
+}  // namespace content