Offline Pages: Replace Observer::OfflinePageModelChanged with OfflinePageAdded.

chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc

 // 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.
 
 #include "chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.h"
 
 #include "base/android/callback_android.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/memory/ptr_util.h"
@@ skipping 187 matching lines @@
       env, java_ref_);
 }
 
 // Implement OfflinePageModel::Observer
 void OfflinePageEvaluationBridge::OfflinePageModelLoaded(
     OfflinePageModel* model) {
   DCHECK_EQ(offline_page_model_, model);
   NotifyIfDoneLoading();
 }
 
-void OfflinePageEvaluationBridge::OfflinePageModelChanged(
-    OfflinePageModel* model) {}
-
-void OfflinePageEvaluationBridge::OfflinePageDeleted(
-    int64_t offline_id,
-    const ClientId& client_id) {}
-
 // Implement RequestCoordinator::Observer
 void OfflinePageEvaluationBridge::OnAdded(const SavePageRequest& request) {
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_OfflinePageEvaluationBridge_savePageRequestAdded(
       env, java_ref_, ToJavaSavePageRequest(env, request));
 }
 
 void OfflinePageEvaluationBridge::OnCompleted(
     const SavePageRequest& request,
     RequestNotifier::BackgroundSavePageResult status) {
@@ skipping 58 matching lines @@
 
 void OfflinePageEvaluationBridge::NotifyIfDoneLoading() const {
   if (!offline_page_model_->is_loaded())
     return;
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_OfflinePageEvaluationBridge_offlinePageModelLoaded(env, java_ref_);
 }
 
 }  // namespace android
 }  // namespace offline_pages