Separate JNI registration with initialization

content/public/app/content_jni_onload.h

+// Copyright 2015 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 CONTENT_PUBLIC_APP_CONTENT_JNI_ONLOAD_H_
+#define CONTENT_PUBLIC_APP_CONTENT_JNI_ONLOAD_H_
+
+#include <jni.h>
+
+#include "content/common/content_export.h"
+
+namespace base {
+namespace android {
+
+class JNIOnLoadDelegate;
+
+}  // namespace android
+}  // namespace base
+
+namespace content {
+namespace android {
+
+// Returns true if JNI registration and initialization succeeded. Refer to
+// JNIOnLoadDelegate for more information.
+CONTENT_EXPORT bool OnJNIOnLoad(
+    JavaVM* vm,
+    base::android::JNIOnLoadDelegate* delegate);
+
+}  // namespace android
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_APP_CONTENT_JNI_ONLOAD_H_