Revert of Extract webkit_unit_tests from blink_web component.

third_party/WebKit/public/web/WebHistoryItem.h

 /*
  * 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 99 matching lines @@
 
     BLINK_EXPORT WebString httpContentType() const;
     BLINK_EXPORT void setHTTPContentType(const WebString&);
 
     BLINK_EXPORT WebHTTPBody httpBody() const;
     BLINK_EXPORT void setHTTPBody(const WebHTTPBody&);
 
     BLINK_EXPORT WebVector<WebString> getReferencedFilePaths() const;
 
 #if BLINK_IMPLEMENTATION
-    BLINK_EXPORT WebHistoryItem(const PassRefPtrWillBeRawPtr<HistoryItem>&);
-    BLINK_EXPORT WebHistoryItem& operator=(const PassRefPtrWillBeRawPtr<HistoryItem>&);
-    BLINK_EXPORT operator PassRefPtrWillBeRawPtr<HistoryItem>() const;
+    WebHistoryItem(const PassRefPtrWillBeRawPtr<HistoryItem>&);
+    WebHistoryItem& operator=(const PassRefPtrWillBeRawPtr<HistoryItem>&);
+    operator PassRefPtrWillBeRawPtr<HistoryItem>() const;
 #endif
 
 private:
     WebPrivatePtr<HistoryItem> m_private;
 };
 
 } // namespace blink
 
 #endif