Add gmock into our dependencies.

third_party/boost/boost/mpl/deref.hpp

Index: third_party/boost/boost/mpl/deref.hpp
diff --git a/third_party/boost/boost/mpl/deref.hpp b/third_party/boost/boost/mpl/deref.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..391e0ea6cb3c181d077f1864976029219de483e2
--- /dev/null
+++ b/third_party/boost/boost/mpl/deref.hpp
@@ -0,0 +1,41 @@
+
+#ifndef BOOST_MPL_DEREF_HPP_INCLUDED
+#define BOOST_MPL_DEREF_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2002-2004
+//
+// Distributed under the Boost Software License, Version 1.0. 
+// (See accompanying file LICENSE_1_0.txt or copy at 
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Source$
+// $Date: 2004-09-02 11:41:37 -0400 (Thu, 02 Sep 2004) $
+// $Revision: 24874 $
+
+#include <boost/mpl/aux_/msvc_type.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+#include <boost/mpl/aux_/config/eti.hpp>
+
+namespace boost { namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(Iterator)
+    >
+struct deref
+{
+#if !defined(BOOST_MPL_CFG_MSVC_70_ETI_BUG)
+    typedef typename Iterator::type type;
+#else
+    typedef typename aux::msvc_type<Iterator>::type type;
+#endif
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,deref,(Iterator))
+};
+
+BOOST_MPL_AUX_NA_SPEC(1, deref)
+
+}}
+
+#endif // BOOST_MPL_DEREF_HPP_INCLUDED