Changes to use the modified dart API for

Source/bindings/dart/DartStringCache.cpp

Index: Source/bindings/dart/DartStringCache.cpp
===================================================================
--- Source/bindings/dart/DartStringCache.cpp	(revision 168317)
+++ Source/bindings/dart/DartStringCache.cpp	(working copy)
@@ -43,9 +43,10 @@
 
 void DartStringCache::clearWeakHandles()
 {
+    Dart_Isolate isolate = Dart_CurrentIsolate();
     for (StringCache::iterator it = m_stringCache.begin(); it != m_stringCache.end(); ++it) {
         it->key->deref();
-        Dart_DeleteWeakPersistentHandle(it->value);
+        Dart_DeleteWeakPersistentHandle(isolate, it->value);
     }
     m_stringCache.clear();
     m_lastStringImpl = 0;
@@ -84,17 +85,18 @@
     return wrapper;
 }
 
-void DartStringCache::handleFinalizer(Dart_WeakPersistentHandle handle, void* peer)
+void DartStringCache::handleFinalizer(Dart_Isolate isolate, Dart_WeakPersistentHandle handle, void* peer)
 {
     StringImpl* stringImpl = reinterpret_cast<StringImpl*>(peer);
-    DartStringCache& stringCache = DartDOMData::current()->stringCache();
+    DartDOMData* domData = reinterpret_cast<DartDOMData*>(Dart_IsolateData(isolate));
+    DartStringCache& stringCache = domData->stringCache();
     Dart_WeakPersistentHandle ALLOW_UNUSED cached = stringCache.m_stringCache.take(stringImpl);
     ASSERT(handle == cached);
     if (stringCache.m_lastDartString == handle) {
         stringCache.m_lastStringImpl = 0;
         stringCache.m_lastDartString = 0;
     }
-    Dart_DeleteWeakPersistentHandle(handle);
+    Dart_DeleteWeakPersistentHandle(isolate, handle);
     stringImpl->deref();
 }