Revert of IndexedDBFactory now ForceCloses databases.

content/browser/indexed_db/indexed_db_database.cc

Index: content/browser/indexed_db/indexed_db_database.cc
diff --git a/content/browser/indexed_db/indexed_db_database.cc b/content/browser/indexed_db/indexed_db_database.cc
index 3f7f98a947157119f6ec73f7a5ce9dfcc02b6e9c..ba53e662159375769f86f070d8fec6f560022555 100644
--- a/content/browser/indexed_db/indexed_db_database.cc
+++ b/content/browser/indexed_db/indexed_db_database.cc
@@ -1589,17 +1589,6 @@
     factory_->DatabaseDeleted(identifier_);
 }
 
-void IndexedDBDatabase::ForceClose() {
-  // IndexedDBConnection::ForceClose() may delete this database, so hold ref.
-  scoped_refptr<IndexedDBDatabase> protect(this);
-  ConnectionSet::const_iterator it = connections_.begin();
-  while (it != connections_.end()) {
-    IndexedDBConnection* connection = *it++;
-    connection->ForceClose();
-  }
-  DCHECK(connections_.empty());
-}
-
 void IndexedDBDatabase::Close(IndexedDBConnection* connection, bool forced) {
   DCHECK(connections_.count(connection));
   DCHECK(connection->IsConnected());