- Add dart:json, dart:uri and dart:utf8 to the known and builtin libraries.

bin/dartutils.cc

Index: bin/dartutils.cc
===================================================================
--- bin/dartutils.cc	(revision 4317)
+++ bin/dartutils.cc	(working copy)
@@ -14,6 +14,9 @@
 const char* DartUtils::kCoreLibURL = "dart:core";
 const char* DartUtils::kCoreImplLibURL = "dart:coreimpl";
 const char* DartUtils::kIOLibURL = "dart:io";
+const char* DartUtils::kJsonLibURL = "dart:json";
+const char* DartUtils::kUriLibURL = "dart:uri";
+const char* DartUtils::kUtf8LibURL = "dart:utf8";
 
 
 const char* DartUtils::kIdFieldName = "_id";
@@ -106,7 +109,21 @@
 }
 
 
+bool DartUtils::IsDartJsonLibURL(const char* url_name) {
+  return (strcmp(url_name, kJsonLibURL) == 0);
+}
 
+
+bool DartUtils::IsDartUriLibURL(const char* url_name) {
+  return (strcmp(url_name, kUriLibURL) == 0);
+}
+
+
+bool DartUtils::IsDartUtf8LibURL(const char* url_name) {
+  return (strcmp(url_name, kUtf8LibURL) == 0);
+}
+
+
 Dart_Handle DartUtils::CanonicalizeURL(CommandLineOptions* url_mapping,
                                        Dart_Handle library,
                                        const char* url_str) {