Add gmock into our dependencies.

third_party/boost/boost/mpl/aux_/is_msvc_eti_arg.hpp

Index: third_party/boost/boost/mpl/aux_/is_msvc_eti_arg.hpp
diff --git a/third_party/boost/boost/mpl/aux_/is_msvc_eti_arg.hpp b/third_party/boost/boost/mpl/aux_/is_msvc_eti_arg.hpp
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index 0000000000000000000000000000000000000000..c5a48d5538b6ce49e3276f117c7e6f024ddebdfc
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+++ b/third_party/boost/boost/mpl/aux_/is_msvc_eti_arg.hpp
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+
+#ifndef BOOST_MPL_AUX_IS_MSVC_ETI_ARG_HPP_INCLUDED
+#define BOOST_MPL_AUX_IS_MSVC_ETI_ARG_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2001-2004
+//
+// 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_/yes_no.hpp>
+#include <boost/mpl/aux_/config/eti.hpp>
+#include <boost/mpl/aux_/config/static_constant.hpp>
+
+namespace boost { namespace mpl { namespace aux {
+
+#if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
+
+#if defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG)
+
+template< typename T >
+struct is_msvc_eti_arg
+{ 
+    BOOST_STATIC_CONSTANT(bool, value = false);
+};
+
+#else // BOOST_MPL_CFG_MSVC_60_ETI_BUG
+
+struct eti_int_convertible
+{
+    eti_int_convertible(int);
+};
+
+template< typename T >
+struct is_msvc_eti_arg
+{ 
+    static no_tag test(...);
+    static yes_tag test(eti_int_convertible);
+    static T& get();
+
+    BOOST_STATIC_CONSTANT(bool, value = 
+          sizeof(test(get())) == sizeof(yes_tag)
+        );
+};
+
+#endif
+
+template<>
+struct is_msvc_eti_arg<int>
+{ 
+    BOOST_STATIC_CONSTANT(bool, value = true);
+};
+
+#endif // BOOST_MPL_CFG_MSVC_ETI_BUG
+
+}}}
+
+#endif // BOOST_MPL_AUX_IS_MSVC_ETI_ARG_HPP_INCLUDED