IndexedDB: Using a mock IndexedDBFactory for unit tests

content/browser/indexed_db/indexed_db_factory_impl.cc

 // Copyright (c) 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 "content/browser/indexed_db/indexed_db_factory_impl.h"
 
+#include <utility>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "content/browser/indexed_db/indexed_db_backing_store.h"
 #include "content/browser/indexed_db/indexed_db_context_impl.h"
 #include "content/browser/indexed_db/indexed_db_database_error.h"
 #include "content/browser/indexed_db/indexed_db_tracing.h"
 #include "content/browser/indexed_db/indexed_db_transaction_coordinator.h"
@@ skipping 101 matching lines @@
     // Scope so that the implicit scoped_refptr<> is freed.
     IndexedDBBackingStoreMap::const_iterator it =
         backing_store_map_.find(origin_url);
     DCHECK(it != backing_store_map_.end());
     ptr = it->second.get();
   }
   return ptr->HasOneRef();
 }
 
 void IndexedDBFactoryImpl::ForceClose(const GURL& origin_url) {
-  std::pair<OriginDBMapIterator, OriginDBMapIterator> range =
-      GetOpenDatabasesForOrigin(origin_url);
+  OriginDBs range = GetOpenDatabasesForOrigin(origin_url);
 
   while (range.first != range.second) {
     IndexedDBDatabase* db = range.first->second;
     ++range.first;
     db->ForceClose();
   }
 
   if (backing_store_map_.find(origin_url) != backing_store_map_.end())
     ReleaseBackingStore(origin_url, true /* immediate */);
 }
@@ skipping 348 matching lines @@
 
 std::pair<IndexedDBFactoryImpl::OriginDBMapIterator,
           IndexedDBFactoryImpl::OriginDBMapIterator>
 IndexedDBFactoryImpl::GetOpenDatabasesForOrigin(const GURL& origin_url) const {
   return origin_dbs_.equal_range(origin_url);
 }
 
 size_t IndexedDBFactoryImpl::GetConnectionCount(const GURL& origin_url) const {
   size_t count(0);
 
-  std::pair<OriginDBMapIterator, OriginDBMapIterator> range =
-      GetOpenDatabasesForOrigin(origin_url);
+  OriginDBs range = GetOpenDatabasesForOrigin(origin_url);
   for (OriginDBMapIterator it = range.first; it != range.second; ++it)
     count += it->second->ConnectionCount();
 
   return count;
 }
 
 }  // namespace content