Enable inspector tests disabled when dart:html was switched to JS interop.

Source/core/inspector/InjectedScript.h

 /*
  * Copyright (C) 2012 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 98 matching lines @@
     PassRefPtr<TypeBuilder::Runtime::RemoteObject> wrapObject(const ScriptValue&, const String& groupName, bool generatePreview = false) const;
     PassRefPtr<TypeBuilder::Runtime::RemoteObject> wrapTable(const ScriptValue& table, const ScriptValue& columns) const;
     PassRefPtr<TypeBuilder::Runtime::RemoteObject> wrapNode(Node*, const String& groupName);
     ScriptValue findObjectById(const String& objectId) const;
 
     String objectIdToObjectGroupName(const String& objectId) const;
     void releaseObjectGroup(const String&);
 
     void setCustomObjectFormatterEnabled(bool);
 
+    // Added for Dart.
+    ScriptValue injectedScriptObject() { return m_injectedScriptObject; }
+    // End of block added for Dart.
+
 private:
     friend InjectedScript InjectedScriptManager::injectedScriptFor(ScriptState*);
     using InspectedStateAccessCheck = bool (*)(ScriptState*);
     InjectedScript(ScriptValue, InspectedStateAccessCheck, PassRefPtr<InjectedScriptNative>);
 
     ScriptValue nodeAsScriptValue(Node*);
     void initialize(ScriptValue, InspectedStateAccessCheck);
     bool canAccessInspectedWindow() const;
     const ScriptValue& injectedScriptObject() const;
     ScriptValue callFunctionWithEvalEnabled(ScriptFunctionCall&, bool& hadException) const;
     void makeCall(ScriptFunctionCall&, RefPtr<JSONValue>* result);
     void makeEvalCall(ErrorString*, ScriptFunctionCall&, RefPtr<TypeBuilder::Runtime::RemoteObject>* result, TypeBuilder::OptOutput<bool>* wasThrown, RefPtr<TypeBuilder::Debugger::ExceptionDetails>* = 0);
     void makeCallWithExceptionDetails(ScriptFunctionCall&, RefPtr<JSONValue>* result, RefPtr<TypeBuilder::Debugger::ExceptionDetails>*);
 
     ScriptValue m_injectedScriptObject;
     InspectedStateAccessCheck m_inspectedStateAccessCheck;
     RefPtr<InjectedScriptNative> m_native;
 };
 
 } // namespace blink
 
 #endif