[Offline Pages] Remove load state from public OfflinePageModel API.

components/offline_pages/core/offline_page_model_impl.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 "components/offline_pages/core/offline_page_model_impl.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/bind.h"
@@ skipping 647 matching lines @@
 }
 
 OfflinePageMetadataStore* OfflinePageModelImpl::GetStoreForTesting() {
   return store_.get();
 }
 
 OfflinePageStorageManager* OfflinePageModelImpl::GetStorageManager() {
   return storage_manager_.get();
 }
 
-bool OfflinePageModelImpl::is_loaded() const {
-  return is_loaded_;
-}
-
 OfflineEventLogger* OfflinePageModelImpl::GetLogger() {
   return &offline_event_logger_;
 }
 
 void OfflinePageModelImpl::OnCreateArchiveDone(
     const SavePageParams& save_page_params,
     int64_t offline_id,
     const base::Time& start_time,
     const SavePageCallback& callback,
     OfflinePageArchiver* archiver,
@@ skipping 142 matching lines @@
   // Ensure necessary cleanup operations are started.
   CheckMetadataConsistency();
 }
 
 void OfflinePageModelImpl::FinalizeModelLoad() {
   is_loaded_ = true;
 
   // All actions below are meant to be taken regardless of successful load of
   // the store.
 
-  // Inform observers the load is done.
-  for (Observer& observer : observers_)
-    observer.OfflinePageModelLoaded(this);
-
   // Run all the delayed tasks.
   for (const auto& delayed_task : delayed_tasks_)
     delayed_task.Run();
   delayed_tasks_.clear();
 
   // Clear storage.
   PostClearStorageIfNeededTask(true /* delayed */);
 }
 
 void OfflinePageModelImpl::InformSavePageDone(const SavePageCallback& callback,
@@ skipping 237 matching lines @@
   }
 
   base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, task);
 }
 
 base::Time OfflinePageModelImpl::GetCurrentTime() const {
   return testing_clock_ ? testing_clock_->Now() : base::Time::Now();
 }
 
 }  // namespace offline_pages