Add built-in root certificates to dart:io SecureSocket.

sdk/lib/_internal/compiler/implementation/lib/io_patch.dart

Index: sdk/lib/_internal/compiler/implementation/lib/io_patch.dart
diff --git a/sdk/lib/_internal/compiler/implementation/lib/io_patch.dart b/sdk/lib/_internal/compiler/implementation/lib/io_patch.dart
index a253935b996c1629b7ff9ce0f51941da7b85d951..58f5c6f31c68b6b2474ce20264e242503a51dd07 100644
--- a/sdk/lib/_internal/compiler/implementation/lib/io_patch.dart
+++ b/sdk/lib/_internal/compiler/implementation/lib/io_patch.dart
@@ -168,8 +168,9 @@ patch class Socket {
 }
 
 patch class SecureSocket {
-  patch static void setCertificateDatabase(String certificateDatabase,
-                                           [String password]) {
+  patch static void initialize({String database,
+                                String password,
+                                bool useBuiltinRoots}) {
     throw new UnsupportedError("SecureSocket.setCertificateDatabase");
   }
 }