Change Dart_DefaultCanonicalizeUrl to accept the library url string instead of a library, this is u…

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
 #include "lib/stacktrace.h"
@@ skipping 5153 matching lines @@
 
 DART_EXPORT Dart_Handle Dart_SetLibraryTagHandler(
     Dart_LibraryTagHandler handler) {
   Isolate* isolate = Isolate::Current();
   CHECK_ISOLATE(isolate);
   isolate->set_library_tag_handler(handler);
   return Api::Success();
 }
 
 
-DART_EXPORT Dart_Handle Dart_DefaultCanonicalizeUrl(Dart_Handle library,
+DART_EXPORT Dart_Handle Dart_DefaultCanonicalizeUrl(Dart_Handle library_url,
                                                     Dart_Handle url) {
   API_TIMELINE_DURATION;
   DARTSCOPE(Thread::Current());
   CHECK_CALLBACK_STATE(T);
 
-  const Library& lib = Api::UnwrapLibraryHandle(Z, library);
-  if (lib.IsNull()) {
-    RETURN_TYPE_ERROR(Z, library, Library);
+  const String& lib_uri = Api::UnwrapStringHandle(Z, library_url);
+  if (lib_uri.IsNull()) {
+    RETURN_TYPE_ERROR(Z, library_url, String);
   }
   const String& uri = Api::UnwrapStringHandle(Z, url);
   if (uri.IsNull()) {
     RETURN_TYPE_ERROR(Z, url, String);
   }
 
-  const String& lib_uri = String::Handle(Z, lib.url());
   const char* resolved_uri;
   if (!ResolveUri(uri.ToCString(), lib_uri.ToCString(), &resolved_uri)) {
     return Api::NewError("%s: Unable to canonicalize uri '%s'.",
                          CURRENT_FUNC, uri.ToCString());
   }
   return Api::NewHandle(T, String::New(resolved_uri));
 }
 
 
 // NOTE: Need to pass 'result' as a parameter here in order to avoid
@@ skipping 1240 matching lines @@
 
 DART_EXPORT bool Dart_IsPrecompiledRuntime() {
 #if defined(DART_PRECOMPILED_RUNTIME)
   return true;
 #else
   return false;
 #endif
 }
 
 }  // namespace dart