Separate JNI registration with initialization

testing/android/native_test_jni_onload.cc

+// 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.
+
+#include "base/android/base_jni_onload.h"
+#include "base/android/jni_android.h"
+#include "base/android/jni_onload_delegate.h"
+#include "testing/android/native_test_launcher.h"
+
+namespace {
+
+class NativeTestJNIOnLoadDelegate : public base::android::JNIOnLoadDelegate {
+ public:
+  bool RegisterJNI(JNIEnv* env) override;
+  bool Init() override;
+};
+
+bool NativeTestJNIOnLoadDelegate::RegisterJNI(JNIEnv* env) {
+  return RegisterNativeTestJNI(env);
+}
+
+bool NativeTestJNIOnLoadDelegate::Init() {
+  InstallHandlers();
+  return true;
+}
+
+}  // namespace
+
+
+// This is called by the VM when the shared library is first loaded.
+JNI_EXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
+  NativeTestJNIOnLoadDelegate delegate;
+  std::vector<base::android::JNIOnLoadDelegate*> delegates;
+  delegates.push_back(&delegate);
+
+  if (!base::android::OnJNIOnLoad(vm, &delegates))
+    return -1;
+
+  return JNI_VERSION_1_4;
+}