Update from https://crrev.com/317530

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/jni_android.h"
-#include "base/android/jni_onload_delegate.h"
+#include "base/android/jni_utils.h"
 #include "base/android/library_loader/library_loader_hooks.h"
+#include "base/bind.h"
 
 namespace base {
 namespace android {
 
 namespace {
 
-// The JNIOnLoadDelegate implementation in base.
-class BaseJNIOnLoadDelegate : public JNIOnLoadDelegate {
- public:
-  bool RegisterJNI(JNIEnv* env) override;
-  bool Init() override;
-};
-
-bool BaseJNIOnLoadDelegate::RegisterJNI(JNIEnv* env) {
+bool RegisterJNI(JNIEnv* env) {
   return RegisterLibraryLoaderEntryHook(env);
 }
 
-bool BaseJNIOnLoadDelegate::Init() {
+bool Init() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  base::android::InitReplacementClassLoader(env,
+                                            base::android::GetClassLoader(env));
   return true;
 }
 
 }  // namespace
 
 
-bool OnJNIOnLoad(JavaVM* vm,
-                 std::vector<JNIOnLoadDelegate*>* delegates) {
+bool OnJNIOnLoadRegisterJNI(JavaVM* vm,
+                            std::vector<RegisterCallback> callbacks) {
   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;
-    }
+  callbacks.push_back(base::Bind(&RegisterJNI));
+  for (std::vector<RegisterCallback>::reverse_iterator i =
+           callbacks.rbegin(); i != callbacks.rend(); ++i) {
+    if (!i->Run(env))
+      return false;
   }
+  return true;
+}
 
-  if (ret) {
-    for (std::vector<JNIOnLoadDelegate*>::reverse_iterator i =
-             delegates->rbegin(); i != delegates->rend(); ++i) {
-      if (!(*i)->Init()) {
-        ret = false;
-        break;
-      }
-    }
+bool OnJNIOnLoadInit(std::vector<InitCallback> callbacks) {
+  callbacks.push_back(base::Bind(&Init));
+  for (std::vector<InitCallback>::reverse_iterator i =
+           callbacks.rbegin(); i != callbacks.rend(); ++i) {
+    if (!i->Run())
+      return false;
   }
-  delegates->pop_back();
-  return ret;
+  return true;
 }
 
 }  // namespace android
 }  // namespace base