Use isolate schedule immediate. Update embedder.

Source/bindings/dart/DartController.cpp

 // Copyright (c) 2009, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 183 matching lines @@
     // Setup configuration closures
     char forwardingProp[DartUtilities::PROP_VALUE_MAX_LEN];
     int propLen = DartUtilities::getProp("DART_FORWARDING_PRINT",
         forwardingProp, DartUtilities::PROP_VALUE_MAX_LEN);
     bool forwardPrint = propLen > 0;
     const char * const printClosure = forwardPrint ?
         "_forwardingPrintClosure" :
         (isDOMEnabled ?  "_printClosure" : "_pureIsolatePrintClosure");
     copyValue(html, printClosure, "dart:_collection-dev", 0, "_printClosure");
     copyValue(html, isDOMEnabled ? "_timerFactoryClosure" : "_pureIsolateTimerFactoryClosure", "dart:async", "_TimerFactory", "_factory");
-    copyValue(html, isDOMEnabled ? "_scheduleImmediateClosure" : "_pureIsolateScheduleImmediateClosure", "dart:async", "_ScheduleImmediate", "_closure");
+    if (isDOMEnabled) {
+        copyValue(html, "_scheduleImmediateClosure", "dart:async", "_ScheduleImmediate", "_closure");
+    } else {
+        // Use the VM implementation (from dart:isolate) for scheduleImmediate.
+        Dart_Handle isolateLibrary = Dart_LookupLibrary(Dart_NewStringFromCString("dart:isolate"));
+        ASSERT(!Dart_IsError(isolateLibrary));
+
+        Dart_Handle value = Dart_Invoke(isolateLibrary, Dart_NewStringFromCString("_getIsolateScheduleImmediateClosure"), 0, 0);
+        ASSERT(!Dart_IsError(value));
+
+        Dart_Handle library = Dart_LookupLibrary(Dart_NewStringFromCString("dart:async"));
+        ASSERT(!Dart_IsError(library));
+
+        Dart_Handle target = Dart_GetType(library, Dart_NewStringFromCString("_ScheduleImmediate"), 0, 0);
+        ASSERT(!Dart_IsError(target));
+
+        Dart_SetField(target, Dart_NewStringFromCString("_closure"), value);
+    }
     copyValue(html, isDOMEnabled ? "_uriBaseClosure" : "_pureIsolateUriBaseClosure", "dart:core", 0, "_uriBaseClosure");
 
     if (isDOMEnabled) {
         // Create strongly reachable document wrapper. Document wrapper acts as a
         // retainer for in-document node wrappers group. There is no need to destroy
         // this persistent handle explicitly because we will shutdown the isolate on
         // navigation.
         Dart_Handle localHandle = DartDocument::toDart(document);
         Dart_PersistentHandle strongHandle = Dart_NewPersistentHandle(localHandle);
         // We need a weak handle to always reachable object to temporary render
@@ skipping 621 matching lines @@
         Dart_Handle libraryIdHandle = Dart_ListGetAt(libraryIdList, i);
         Dart_Handle exception = 0;
         intptr_t libraryId = DartUtilities::toInteger(libraryIdHandle, exception);
         ASSERT(!exception);
         DartScriptState* scriptState = lookupScriptStateFromLibraryIdMap(isolate, v8Context, libraryIdMap, libraryId);
         result.append(scriptState);
     }
 }
 
 }