[Offline Pages] Removing client in storage manager.

components/offline_pages/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/offline_page_model_impl.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/bind.h"
@@ skipping 433 matching lines @@
   callback.Run(result);
 }
 
 void OfflinePageModelImpl::GetAllPages(
     const MultipleOfflinePageItemCallback& callback) {
   RunWhenLoaded(base::Bind(&OfflinePageModelImpl::GetAllPagesAfterLoadDone,
                            weak_ptr_factory_.GetWeakPtr(), callback));
 }
 
 void OfflinePageModelImpl::GetAllPagesAfterLoadDone(
-    const MultipleOfflinePageItemCallback& callback) {
+    const MultipleOfflinePageItemCallback& callback) const {
   DCHECK(is_loaded_);
 
   MultipleOfflinePageItemResult offline_pages;
   for (const auto& id_page_pair : offline_pages_)
     offline_pages.push_back(id_page_pair.second);
 
   callback.Run(offline_pages);
 }
 
 void OfflinePageModelImpl::GetOfflineIdsForClientId(
@@ skipping 488 matching lines @@
 void OfflinePageModelImpl::RunWhenLoaded(const base::Closure& task) {
   if (!is_loaded_) {
     delayed_tasks_.push_back(task);
     return;
   }
 
   base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, task);
 }
 
 }  // namespace offline_pages