Remove insertRange.

sdk/lib/web_sql/dart2js/web_sql_dart2js.dart

Index: sdk/lib/web_sql/dart2js/web_sql_dart2js.dart
diff --git a/sdk/lib/web_sql/dart2js/web_sql_dart2js.dart b/sdk/lib/web_sql/dart2js/web_sql_dart2js.dart
index 9c55643fd926cd6d3f177c7dd71eb075011c60a8..ddacca4236ec5864193fb7a7bd92cc4981c2964d 100644
--- a/sdk/lib/web_sql/dart2js/web_sql_dart2js.dart
+++ b/sdk/lib/web_sql/dart2js/web_sql_dart2js.dart
@@ -367,14 +367,10 @@ class SqlResultSetRowList implements JavaScriptIndexingBehavior, List<Map> nativ
     throw new UnsupportedError("Cannot setRange on immutable List.");
   }
 
-  void removeRange(int start, int rangeLength) {
+  void removeRange(int start, int end) {
     throw new UnsupportedError("Cannot removeRange on immutable List.");
   }
 
-  void insertRange(int start, int rangeLength, [Map initialValue]) {
-    throw new UnsupportedError("Cannot insertRange on immutable List.");
-  }
-
   Iterable<Map> getRange(int start, int end) =>
     IterableMixinWorkaround.getRangeList(this, start, end);