Re-enable about:flags on Android

chrome/browser/lifetime/application_lifetime_android.cc

+// Copyright (c) 2012 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 "chrome/browser/lifetime/application_lifetime_android.h"
+
+#include <jni.h>
+
+#include "base/android/jni_android.h"
+#include "base/logging.h"
+#include "chrome/browser/lifetime/application_lifetime.h"
+#include "jni/ApplicationLifetime_jni.h"
+
+namespace browser {
+
+void AttemptRestart() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_ApplicationLifetime_attemptRestart(env);
+}
+
+bool RegisterApplicationLifetimeAndroid(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace browser