Breaking Change: merge BoringSSL branch into master

sdk/lib/_internal/js_runtime/lib/io_patch.dart

Index: sdk/lib/_internal/js_runtime/lib/io_patch.dart
diff --git a/sdk/lib/_internal/js_runtime/lib/io_patch.dart b/sdk/lib/_internal/js_runtime/lib/io_patch.dart
index 792b74ddc4166b6d9ed3db090c0c56a09edb677d..23f4708da2ff1947ca20b0d23ed5c40705ac5efb 100644
--- a/sdk/lib/_internal/js_runtime/lib/io_patch.dart
+++ b/sdk/lib/_internal/js_runtime/lib/io_patch.dart
@@ -403,12 +403,26 @@ class SecureSocket {
   factory SecureSocket._(RawSecureSocket rawSocket) {
     throw new UnsupportedError("SecureSocket constructor");
   }
+}
+
+@patch
+class SecurityContext {
+  @patch
+  factory SecurityContext() {
+    throw new UnsupportedError("SecurityContext constructor");
+  }
 
   @patch
-  static void initialize({String database,
-                          String password,
-                          bool useBuiltinRoots: true}) {
-    throw new UnsupportedError("SecureSocket.initialize");
+  static SecurityContext get defaultContext {
+    throw new UnsupportedError("default SecurityContext getter");
+  }
+}
+
+@patch
+class X509Certificate {
+  @patch
+  factory X509Certificate._() {
+    throw new UnsupportedError("X509Certificate constructor");
   }
 }