Make the crypto library an official dart:crypto library.

frog/reader.dart

Index: frog/reader.dart
diff --git a/frog/reader.dart b/frog/reader.dart
index f6f89a98b34ab2fe93bf9e80bda193c2ea22df65..9ed63e6e412026a83122d6368a5ef9c9d639e586 100644
--- a/frog/reader.dart
+++ b/frog/reader.dart
@@ -17,8 +17,10 @@ class LibraryReader {
             '../../lib/html/frog/html_frog.dart'),
         'dart:dom': joinPaths(options.libDir,
             '../../lib/dom/frog/dom_frog.dart'),
+        'dart:crypto': joinPaths(options.libDir,
+            '../../lib/crypto/crypto.dart'),
         'dart:json': joinPaths(options.libDir, '../../lib/json/json_frog.dart'),
-         'dart:io': joinPaths(options.libDir,
+        'dart:io': joinPaths(options.libDir,
             '../../lib/compiler/implementation/lib/io.dart'),
         'dart:isolate': joinPaths(options.libDir,
             '../../lib/isolate/isolate_frog.dart'),
@@ -34,6 +36,7 @@ class LibraryReader {
         'dart:dom': joinPaths(options.libDir, 'dom/dom_frog.dart'),
         // TODO(rnystrom): How should we handle dart:io here?
         'dart:isolate': joinPaths(options.libDir, 'isolate/isolate_frog.dart'),
+        'dart:crypto': joinPaths(options.libDir, 'crypto/crypto.dart'),
         'dart:json': joinPaths(options.libDir, 'json/json_frog.dart'),
         'dart:uri': joinPaths(options.libDir, 'uri/uri.dart'),
         'dart:utf': joinPaths(options.libDir, 'utf/utf.dart'),