Dart: Removes all but native calls and the handle watcher from the snapshot.

sky/engine/core/script/dart_controller.cc

Index: sky/engine/core/script/dart_controller.cc
diff --git a/sky/engine/core/script/dart_controller.cc b/sky/engine/core/script/dart_controller.cc
index bc642fd430d768e79d0108139570cd0c0b18caef..cf94635f049292ab00fd943ca309e862bd07a688 100644
--- a/sky/engine/core/script/dart_controller.cc
+++ b/sky/engine/core/script/dart_controller.cc
@@ -199,7 +199,7 @@ static Dart_Isolate IsolateCreateCallback(const char* script_uri,
   {
     DartApiScope apiScope;
     Builtin::SetNativeResolver(Builtin::kBuiltinLibrary);
-    Builtin::SetNativeResolver(Builtin::kMojoCoreLibrary);
+    Builtin::SetNativeResolver(Builtin::kMojoInternalLibrary);
   }
 
   Dart_ExitIsolate();
@@ -231,7 +231,7 @@ static void EnsureHandleWatcherStarted() {
   // TODO(dart): Call Dart_Cleanup (ensure the handle watcher isolate is closed)
   // during shutdown.
   Dart_Handle mojo_core_lib =
-      Builtin::LoadAndCheckLibrary(Builtin::kMojoCoreLibrary);
+      Builtin::LoadAndCheckLibrary(Builtin::kMojoInternalLibrary);
   CHECK(!LogIfError((mojo_core_lib)));
   Dart_Handle handle_watcher_type = Dart_GetType(
       mojo_core_lib,
@@ -268,7 +268,7 @@ void DartController::CreateIsolateFor(Document* document) {
     DartApiScope apiScope;
 
     Builtin::SetNativeResolver(Builtin::kBuiltinLibrary);
-    Builtin::SetNativeResolver(Builtin::kMojoCoreLibrary);
+    Builtin::SetNativeResolver(Builtin::kMojoInternalLibrary);
     BuiltinNatives::Init();
 
     builtin_sky_ = adoptPtr(new BuiltinSky(dart_state()));