Merge 174141 "HTML Imports: Take care of cycles according to the..."

Source/core/html/imports/HTMLImportLoader.cpp

 /*
  * Copyright (C) 2013 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 190 matching lines @@
 }
 
 void HTMLImportLoader::removeImport(HTMLImportChild* client)
 {
     ASSERT(kNotFound != m_imports.find(client));
     m_imports.remove(m_imports.find(client));
 }
 
 bool HTMLImportLoader::shouldBlockScriptExecution() const
 {
-    for (size_t i = 0; i < m_imports.size(); ++i) {
-        if (!m_imports[i]->state().shouldBlockScriptExecution())
-            return false;
-    }
-
-    return true;
+    return firstImport()->state().shouldBlockScriptExecution();
 }
 
 PassRefPtr<CustomElementMicrotaskQueue> HTMLImportLoader::microtaskQueue() const
 {
     return m_microtaskQueue;
 }
 
 } // namespace WebCore