Make it possible to run Sky apps offline

sky/engine/core/script/dart_controller.h

Index: sky/engine/core/script/dart_controller.h
diff --git a/sky/engine/core/script/dart_controller.h b/sky/engine/core/script/dart_controller.h
index 7d7347cdc34eb7729ce84b8dffe7ae2b8b3367a2..bff9f29c7afb18f3b8485a3aa17d4d5df7e04413 100644
--- a/sky/engine/core/script/dart_controller.h
+++ b/sky/engine/core/script/dart_controller.h
@@ -18,7 +18,8 @@ namespace blink {
 class AbstractModule;
 class BuiltinSky;
 class DOMDartState;
-class DartLibraryProviderNetwork;
+class DartLibraryProvider;
+class DartLibraryProviderWebView;
 class DartSnapshotLoader;
 class DartValue;
 class HTMLScriptElement;
@@ -35,10 +36,11 @@ class DartController {
   typedef base::Callback<void(RefPtr<AbstractModule>, RefPtr<DartValue>)>
       LoadFinishedCallback;
 
-  // Can either issue the url load ourselves or take an existing response:
-  void LoadMainLibrary(const KURL& url, mojo::URLResponsePtr response = nullptr);
   void LoadSnapshot(const KURL& url, mojo::URLResponsePtr response = nullptr);
 
+  void RunFromLibrary(const String& name,
+                      DartLibraryProvider* library_provider);
+
   void LoadScriptInModule(AbstractModule* module,
                           const String& source,
                           const TextPosition& textPosition,
@@ -59,12 +61,12 @@ class DartController {
                             const String& source,
                             const TextPosition& position);
 
-  void DidLoadMainLibrary(KURL url);
+  void DidLoadMainLibrary(String url);
   void DidLoadSnapshot();
 
   OwnPtr<DOMDartState> dom_dart_state_;
   OwnPtr<BuiltinSky> builtin_sky_;
-  OwnPtr<DartLibraryProviderNetwork> library_provider_;
+  OwnPtr<DartLibraryProviderWebView> library_provider_;
   OwnPtr<DartSnapshotLoader> snapshot_loader_;
 
   base::WeakPtrFactory<DartController> weak_factory_;