Clean up net unit testing code.

net/http/url_security_manager.h

Index: net/http/url_security_manager.h
diff --git a/net/http/url_security_manager.h b/net/http/url_security_manager.h
index c6a5ec93693ec70ba57695c3f4432566ee03fb73..119d6bddd718cf08732bd747558a2ddbfecffe99 100644
--- a/net/http/url_security_manager.h
+++ b/net/http/url_security_manager.h
@@ -74,25 +74,6 @@ class URLSecurityManagerWhitelist : public URLSecurityManager {
   DISALLOW_COPY_AND_ASSIGN(URLSecurityManagerWhitelist);
 };
 
-#if defined(UNIT_TEST)
-// An URLSecurityManager which is very permissive.
-class URLSecurityManagerAllow : public URLSecurityManager {
- public:
-  URLSecurityManagerAllow() {}
-  virtual ~URLSecurityManagerAllow() {}
-
-  virtual bool CanUseDefaultCredentials(const GURL& auth_origin) const {
-    return true;
-  }
-  virtual bool CanDelegate(const GURL& auth_origin) const {
-    return true;
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(URLSecurityManagerAllow);
-};
-#endif  // defined(UNIT_TEST)
-
 }  // namespace net
 
 #endif  // NET_HTTP_URL_SECURITY_MANAGER_H_