Add gmock into our dependencies.

third_party/boost/boost/mpl/aux_/has_apply.hpp

Index: third_party/boost/boost/mpl/aux_/has_apply.hpp
diff --git a/third_party/boost/boost/mpl/aux_/has_apply.hpp b/third_party/boost/boost/mpl/aux_/has_apply.hpp
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index 0000000000000000000000000000000000000000..a23f0e9e870241e3382013128597efa629b16b48
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+++ b/third_party/boost/boost/mpl/aux_/has_apply.hpp
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+
+#ifndef BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED
+#define BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 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: 2004-09-03 11:56:59 -0400 (Fri, 03 Sep 2004) $
+// $Revision: 24892 $
+
+#include <boost/mpl/has_xxx.hpp>
+#include <boost/mpl/aux_/config/has_apply.hpp>
+
+namespace boost { namespace mpl { namespace aux {
+#if !defined(BOOST_MPL_CFG_NO_HAS_APPLY)
+BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_apply, apply, false)
+#else
+template< typename T, typename fallback_ = false_ >
+struct has_apply
+    : fallback_
+{
+};
+#endif
+}}}
+
+#endif // BOOST_MPL_AUX_HAS_APPLY_HPP_INCLUDED