[Offline Pages] Removes the unused "HasPages" function.

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 460 matching lines @@
 
   std::vector<int64_t> offline_ids;
   for (const auto& id_page_pair : offline_pages_) {
     if (!IsUserRequestedPage(id_page_pair.second) &&
         predicate.Run(id_page_pair.second.url))
       offline_ids.push_back(id_page_pair.first);
   }
   DoDeletePagesByOfflineId(offline_ids, callback);
 }
 
-void OfflinePageModelImpl::HasPages(const std::string& name_space,
-                                    const HasPagesCallback& callback) {
-  RunWhenLoaded(base::Bind(&OfflinePageModelImpl::HasPagesAfterLoadDone,
-                           weak_ptr_factory_.GetWeakPtr(), name_space,
-                           callback));
-}
-
-void OfflinePageModelImpl::HasPagesAfterLoadDone(
-    const std::string& name_space,
-    const HasPagesCallback& callback) const {
-  DCHECK(is_loaded_);
-
-  bool has_pages = false;
-
-  for (const auto& id_page_pair : offline_pages_) {
-    if (id_page_pair.second.client_id.name_space == name_space &&
-        !id_page_pair.second.IsExpired()) {
-      has_pages = true;
-      break;
-    }
-  }
-
-  callback.Run(has_pages);
-}
-
 void OfflinePageModelImpl::CheckPagesExistOffline(
     const std::set<GURL>& urls,
     const CheckPagesExistOfflineCallback& callback) {
   RunWhenLoaded(
       base::Bind(&OfflinePageModelImpl::CheckPagesExistOfflineAfterLoadDone,
                  weak_ptr_factory_.GetWeakPtr(), urls, callback));
 }
 
 void OfflinePageModelImpl::CheckPagesExistOfflineAfterLoadDone(
     const std::set<GURL>& urls,
@@ skipping 639 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