Implement InstanceIDAndroid using InstanceIDWithSubtype.java

components/gcm_driver/instance_id/android/component_jni_registrar.h

+// Copyright 2016 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.
+
+#ifndef COMPONENTS_GCM_DRIVER_INSTANCE_ID_ANDROID_COMPONENT_JNI_REGISTRAR_H_
+#define COMPONENTS_GCM_DRIVER_INSTANCE_ID_ANDROID_COMPONENT_JNI_REGISTRAR_H_
+
+#include <jni.h>
+
+namespace instance_id {
+namespace android {
+
+// Register all JNI bindings necessary for the gcm_driver/instance_id component.
+bool RegisterInstanceIDJni(JNIEnv* env);
+
+}  // namespace android
+}  // namespace instance_id
+
+#endif  // COMPONENTS_GCM_DRIVER_INSTANCE_ID_ANDROID_COMPONENT_JNI_REGISTRAR_H_