Make IndexedDBConnection IDs independent from the IPC database ID.

content/browser/indexed_db/indexed_db_database.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_database.h"
 
 #include <math.h>
 
 #include <limits>
 #include <set>
@@ skipping 912 matching lines @@
                                                     observer->id());
     }
   }
 }
 
 void IndexedDBDatabase::SendObservations(
     std::map<int32_t, std::unique_ptr<IndexedDBObserverChanges>> changes_map) {
   for (auto* conn : connections_) {
     auto it = changes_map.find(conn->id());
     if (it != changes_map.end())
-      conn->callbacks()->OnDatabaseChange(it->first, std::move(it->second));
+      conn->callbacks()->OnDatabaseChange(std::move(it->second));
   }
 }
 
 void IndexedDBDatabase::GetAll(int64_t transaction_id,
                                int64_t object_store_id,
                                int64_t index_id,
                                std::unique_ptr<IndexedDBKeyRange> key_range,
                                bool key_only,
                                int64_t max_count,
                                scoped_refptr<IndexedDBCallbacks> callbacks) {
@@ skipping 1181 matching lines @@
 
 void IndexedDBDatabase::VersionChangeAbortOperation(
     int64_t previous_version,
     IndexedDBTransaction* transaction) {
   DCHECK(!transaction);
   IDB_TRACE("IndexedDBDatabase::VersionChangeAbortOperation");
   metadata_.version = previous_version;
 }
 
 }  // namespace content