Separate JNI registration with initialization

base/android/base_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/base_jni_onload_delegate.h"
+#include "base/android/jni_android.h"
+
+namespace base {
+namespace android {
+
+bool OnJNIOnLoad(JavaVM* vm,
+                 std::vector<JNIOnLoadDelegate*>* delegates) {
+  base::android::InitVM(vm);
+  JNIEnv* env = base::android::AttachCurrentThread();
+
+  BaseJNIOnLoadDelegate delegate;
+  delegates->push_back(&delegate);
+  bool ret = true;
+  for (std::vector<JNIOnLoadDelegate*>::reverse_iterator i =
+           delegates->rbegin(); i != delegates->rend(); ++i) {
+    if (!(*i)->RegisterJNI(env)) {
+      ret = false;
+      break;
+    }
+  }
+
+  if (ret) {
+    for (std::vector<JNIOnLoadDelegate*>::reverse_iterator i =
+             delegates->rbegin(); i != delegates->rend(); ++i) {
+      if (!(*i)->Init()) {
+        ret = false;
+        break;
+      }
+    }
+  }
+  delegates->pop_back();
+  return ret;
+}
+
+}  // namespace android
+}  // namespace base