Remove usage of FOR_EACH_OBSERVER macro in ui/app_list

ui/app_list/search/history_data.cc

 // Copyright 2013 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 "ui/app_list/search/history_data.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 127 matching lines @@
 }
 
 void HistoryData::RemoveObserver(HistoryDataObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 void HistoryData::OnStoreLoaded(std::unique_ptr<Associations> loaded_data) {
   if (loaded_data)
     loaded_data->swap(associations_);
 
-  FOR_EACH_OBSERVER(
-      HistoryDataObserver, observers_, OnHistoryDataLoadedFromStore());
+  for (auto& observer : observers_)
+    observer.OnHistoryDataLoadedFromStore();
 }
 
 void HistoryData::TrimEntries() {
   if (associations_.size() <= max_primary_)
     return;
 
   std::vector<EntrySortData> entries;
   for (Associations::const_iterator it = associations_.begin();
        it != associations_.end();
        ++it) {
     entries.push_back(EntrySortData(&it->first, &it->second.update_time));
   }
 
   const size_t entries_to_remove = associations_.size() - max_primary_;
   std::partial_sort(entries.begin(),
                     entries.begin() + entries_to_remove,
                     entries.end(),
                     &EntrySortByTimeAscending);
 
   for (size_t i = 0; i < entries_to_remove; ++i) {
     const std::string& query = *entries[i].query;
     store_->Delete(query);
     associations_.erase(query);
   }
 }
 
 }  // namespace app_list