Update from https://crrev.com/317530

base/android/jni_onload_delegate.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 BASE_ANDROID_JNI_ONLOAD_DELEGATE_H_
-#define BASE_ANDROID_JNI_ONLOAD_DELEGATE_H_
-
-#include <jni.h>
-
-#include "base/base_export.h"
-
-namespace base {
-namespace android {
-
-// This delegate class is used to implement component specific JNI registration
-// and initialization. All methods are called in JNI_OnLoad().
-//
-// Both RegisterJNI() and Init() methods are called if the shared library
-// is loaded by crazy linker that can't find JNI methods without JNI
-// registration, otherwise, only Init() is invoked where dynamic lookup is
-// used to find the JNI methods.
-//
-// It is important to make sure the JNI registration code is only in
-// RegisterJNI(), so it could be stripped out when JNI registration isn't
-// needed.
-class BASE_EXPORT JNIOnLoadDelegate {
- public:
-  virtual ~JNIOnLoadDelegate() {}
-
-  // Returns whether the JNI registration succeeded.
-  virtual bool RegisterJNI(JNIEnv* env) = 0;
-
-  // Returns whether the initialization succeeded. This method is called after
-  // RegisterJNI(), all JNI methods shall ready to be used.
-  virtual bool Init() = 0;
-};
-
-}  // namespace android
-}  // namespace base
-
-#endif  // BASE_ANDROID_JNI_ONLOAD_DELEGATE_H_