[Offline Pages] Added OfflinePageEvaluationBridge for testing.

chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_jni_onload.h

+// Copyright 2016 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 CHROME_BROWSER_ANDROID_OFFLINE_PAGES_EVALUATION_OFFLINE_PAGE_EVALUATION_JNI_ONLOAD_H_
+#define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_EVALUATION_OFFLINE_PAGE_EVALUATION_JNI_ONLOAD_H_
+
+#include "base/android/base_jni_onload.h"
+
+namespace offline_pages {
+namespace android {
+
+bool OnJNIOnLoadRegisterJNI(
+    JavaVM* vm,
+    base::android::RegisterCallback callback);
+
+bool OnJNIOnLoadInit(base::android::InitCallback callback);
+
+}  // namespace android
+}  // namespace offline_pages
+
+#endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_EVALUATION_OFFLINE_PAGE_EVALUATION_JNI_ONLOAD_H_