Implement an infrastructure of Blink-in-JS

Source/bindings/v8/ScriptController.cpp

 /*
  * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Apple 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.
@@ skipping 457 matching lines @@
     windowShell(DOMWrapperWorld::mainWorld())->namedItemAdded(doc, name);
 }
 
 void ScriptController::namedItemRemoved(HTMLDocument* doc, const AtomicString& name)
 {
     windowShell(DOMWrapperWorld::mainWorld())->namedItemRemoved(doc, name);
 }
 
 bool ScriptController::canExecuteScripts(ReasonForCallingCanExecuteScripts reason)
 {
+    v8::Isolate* isolate = v8::Isolate::GetCurrent();
+    if (isolate->InContext() && ScriptState::current(isolate)->world().isBlinkInJSIsolatedWorld())
+        return true;
+
     if (m_frame->document() && m_frame->document()->isSandboxed(SandboxScripts)) {
         // FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
         if (reason == AboutToExecuteScript)
             m_frame->document()->addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Blocked script execution in '" + m_frame->document()->url().elidedString() + "' because the document's frame is sandboxed and the 'allow-scripts' permission is not set.");
         return false;
     }
 
     if (m_frame->document() && m_frame->document()->isViewSource()) {
         ASSERT(m_frame->document()->securityOrigin()->isUnique());
         return true;
@@ skipping 121 matching lines @@
         resultArray->Set(i, evaluationResult);
     }
 
     if (results) {
         for (size_t i = 0; i < resultArray->Length(); ++i)
             results->append(handleScope.Escape(resultArray->Get(i)));
     }
 }
 
 } // namespace WebCore