Revert "Revert "Support multiple DOM isolates and tweak devtools frontend to better handle large #s…

Source/bindings/core/dart/DartApplicationLoader.h

 // Copyright 2011, 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 108 matching lines @@
 
     // Registers a request to be fetched later.
     void addRequest(PassRefPtr<DartScriptInfo>);
 
     // Fetches all pending requests and invokes callback when done.
     void processRequests(Dart_Isolate, const ScriptSourceCode&, PassRefPtr<Callback>);
     void processSingleRequest(Dart_Isolate, const String& url, PassRefPtr<Callback>);
 
     bool running() const { return m_state >= Running; }
     bool error() const { return m_state == Error; }
+    bool uninitialized() const { return m_state == Uninitialized; }
 
+    const KURL& scriptUrl() { return m_scriptUrl; }
 private:
     enum State {
         // The application failed to load.
         Error = -1,
 
         // The isolate is not set.
         Uninitialized = 0,
 
         // The isolate is initialized, but no user scripts have been requested or loaded.
         Initialized,
@@ skipping 77 matching lines @@
     State m_state;
     SnapshotMode m_snapshotMode;
 
     friend class DartService;
     friend class ScriptLoadedCallback;
 };
 
 }
 
 #endif // DartApplicationLoader_h