Offline Pages: Replace Observer::OfflinePageModelChanged with OfflinePageAdded.

chrome/browser/android/offline_pages/offline_page_bridge.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 CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_BRIDGE_H_
 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_BRIDGE_H_
 
 #include <stdint.h>
 
 #include "base/android/jni_android.h"
@@ skipping 22 matching lines @@
       JNIEnv* env,
       const OfflinePageItem& offline_page);
 
   OfflinePageBridge(JNIEnv* env,
                     content::BrowserContext* browser_context,
                     OfflinePageModel* offline_page_model);
   ~OfflinePageBridge() override;
 
   // OfflinePageModel::Observer implementation.
   void OfflinePageModelLoaded(OfflinePageModel* model) override;
-  void OfflinePageModelChanged(OfflinePageModel* model) override;
+  void OfflinePageAdded(OfflinePageModel* model,
+                        const OfflinePageItem& added_page) override;
   void OfflinePageDeleted(int64_t offline_id,
                           const ClientId& client_id) override;
 
   void CheckPagesExistOffline(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       const base::android::JavaParamRef<jobjectArray>& j_urls_array,
       const base::android::JavaParamRef<jobject>& j_callback_obj);
 
   void GetAllPages(JNIEnv* env,
@@ skipping 83 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(OfflinePageBridge);
 };
 
 bool RegisterOfflinePageBridge(JNIEnv* env);
 
 }  // namespace android
 }  // namespace offline_pages
 
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_BRIDGE_H_