Merge the Sky Engine changes from the SkyDart branch

sky/engine/core/app/AbstractModule.cpp

Index: sky/engine/core/app/AbstractModule.cpp
diff --git a/sky/engine/core/app/AbstractModule.cpp b/sky/engine/core/app/AbstractModule.cpp
index fccb59bf2216a456a4b555a5018f6ad3b664d239..3cd17cf515565793e5c7b103edb8e843b2adce52 100644
--- a/sky/engine/core/app/AbstractModule.cpp
+++ b/sky/engine/core/app/AbstractModule.cpp
@@ -26,22 +26,4 @@ ExecutionContext* AbstractModule::executionContext() const {
   return ContextLifecycleObserver::executionContext();
 }
 
-ScriptPromise AbstractModule::import(ScriptState* script_state,
-                                     const String& url_string) {
-  KURL url = document()->completeURL(url_string);
-  RefPtr<ScriptPromiseResolver> resolver =
-      ScriptPromiseResolver::create(script_state);
-  OwnPtr<ModuleLoader> loader =
-      adoptPtr(new ModuleLoader(this, GetApplication(), url));
-  loaders_.set(loader.release(), resolver);
-  return resolver->promise();
-}
-
-void AbstractModule::OnModuleLoadComplete(ModuleLoader* loader,
-                                          Module* module) {
-  RefPtr<ScriptPromiseResolver> resolver = loaders_.take(loader);
-  ScriptState::Scope scope(resolver->scriptState());
-  resolver->resolve(module->exports(resolver->scriptState()).v8Value());
-}
-
 } // namespace blink