[Offline Pages] Add an observer for requests in the CCT namespace.

chrome/browser/android/app_hooks.cc

 // Copyright 2017 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 "chrome/browser/android/app_hooks.h"
 
 #include "base/android/jni_android.h"
 #include "jni/AppHooks_jni.h"
 
 using base::android::ScopedJavaLocalRef;
 
 namespace chrome {
 namespace android {
 
 AppHooks::AppHooks() = default;
 
 AppHooks::~AppHooks() = default;
 
 bool AppHooks::ShouldDetectVideoFullscreen() {
   JNIEnv* env = base::android::AttachCurrentThread();
   ScopedJavaLocalRef<jobject> app_hooks_obj = Java_AppHooks_get(env);
 
   return Java_AppHooks_shouldDetectVideoFullscreen(env, app_hooks_obj);
 }
 
+ScopedJavaLocalRef<jobject> AppHooks::GetOfflinePagesCCTRequestDoneCallback() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> app_hooks_obj = Java_AppHooks_get(env);
+
+  return Java_AppHooks_getOfflinePagesCCTRequestDoneCallback(env,
+                                                             app_hooks_obj);
+}
+
 }  // namespace android
 }  // namespace chrome