Expose a cachePolicy parameter to loadHistoryItem.

Source/web/WebFrameImpl.cpp

 /*
  * Copyright (C) 2009 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 921 matching lines @@
     const ResourceRequest& resourceRequest = request.toResourceRequest();
 
     if (resourceRequest.url().protocolIs("javascript")) {
         loadJavaScriptURL(resourceRequest.url());
         return;
     }
 
     frame()->loader().load(FrameLoadRequest(0, resourceRequest));
 }
 
-void WebFrameImpl::loadHistoryItem(const WebHistoryItem& item)
+void WebFrameImpl::loadHistoryItem(const WebHistoryItem& item, WebURLRequest::CachePolicy cachePolicy)
 {
     ASSERT(frame());
     RefPtr<HistoryItem> historyItem = PassRefPtr<HistoryItem>(item);
     ASSERT(historyItem);
-    frame()->page()->historyController().goToItem(historyItem.get());
+    frame()->page()->historyController().goToItem(historyItem.get(), static_cast<ResourceRequestCachePolicy>(cachePolicy));
 }
 
 void WebFrameImpl::loadData(const WebData& data, const WebString& mimeType, const WebString& textEncoding, const WebURL& baseURL, const WebURL& unreachableURL, bool replace)
 {
     ASSERT(frame());
 
     // If we are loading substitute data to replace an existing load, then
     // inherit all of the properties of that original request.  This way,
     // reload will re-attempt the original request.  It is essential that
     // we only do this when there is an unreachableURL since a non-empty
@@ skipping 1532 matching lines @@
 
         // There is a possibility that the frame being detached was the only
         // pending one. We need to make sure final replies can be sent.
         flushCurrentScopingEffort(m_findRequestIdentifier);
 
         cancelPendingScopingEffort();
     }
 }
 
 } // namespace blink