Pass implementation object to supplemental classes by reference

Source/core/html/imports/LinkImport.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 56 matching lines @@
 {
     if (m_child)
         return;
     if (!m_owner)
         return;
     if (!shouldLoadResource())
         return;
 
     if (!m_owner->document().import()) {
         ASSERT(m_owner->document().frame()); // The document should be the master.
-        HTMLImportsController::provideTo(&m_owner->document());
+        HTMLImportsController::provideTo(m_owner->document());
     }
 
     LinkRequestBuilder builder(m_owner);
     if (!builder.isValid()) {
         didFinish();
         return;
     }
 
     HTMLImport* parent = m_owner->document().import();
     HTMLImportsController* controller = parent->controller();
@@ skipping 48 matching lines @@
 {
     return m_child && m_child->isDone() && !m_child->loaderHasError();
 }
 
 bool LinkImport::ownsLoader() const
 {
     return m_child && m_child->hasLoader() && m_child->ownsLoader();
 }
 
 } // namespace WebCore