Reapply expanding overloaded functions into separate functions.

sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart

Index: sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart
diff --git a/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart b/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart
index c1e3bb7cccd4908da7cc1ef63f70c00310b41f69..0b00a1662693c4a6a90effbb2d02a57e80dddbf8 100644
--- a/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart
+++ b/sdk/lib/indexed_db/dart2js/indexed_db_dart2js.dart
@@ -270,6 +270,31 @@ class Database extends EventTarget native "IDBDatabase" {
     return _transaction(storeName_OR_storeNames, mode);
   }
 
+  Transaction transactionStore(String storeName, String mode) {
+    if (mode != 'readonly' && mode != 'readwrite') {
+      throw new ArgumentError(mode);
+    }
+    // Try and create a transaction with a string mode.  Browsers that expect a
+    // numeric mode tend to convert the string into a number.  This fails
+    // silently, resulting in zero ('readonly').
+    return _transaction(storeName, mode);
+  }
+
+  Transaction transactionList(List<String> storeNames, String mode) {
+    if (mode != 'readonly' && mode != 'readwrite') {
+      throw new ArgumentError(mode);
+    }
+    List storeNames_1 = convertDartToNative_StringArray(storeNames);
+    return _transaction(storeNames_1, mode);
+  }
+  
+  Transaction transactionStores(DomStringList storeNames, String mode) {
+    if (mode != 'readonly' && mode != 'readwrite') {
+      throw new ArgumentError(mode);
+    }
+    return _transaction(storeNames, mode);
+  }
+
   @JSName('transaction')
   Transaction _transaction(stores, mode) native;