Add gmock into our dependencies.

third_party/boost/boost/mpl/aux_/msvc_is_class.hpp

Index: third_party/boost/boost/mpl/aux_/msvc_is_class.hpp
diff --git a/third_party/boost/boost/mpl/aux_/msvc_is_class.hpp b/third_party/boost/boost/mpl/aux_/msvc_is_class.hpp
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index 0000000000000000000000000000000000000000..2d7f77888f4fe316d7386e122ac79e35d23dd98b
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+++ b/third_party/boost/boost/mpl/aux_/msvc_is_class.hpp
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+
+#ifndef BOOST_MPL_AUX_MSVC_IS_CLASS_HPP_INCLUDED
+#define BOOST_MPL_AUX_MSVC_IS_CLASS_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: 2004-09-28 09:56:59 -0400 (Tue, 28 Sep 2004) $
+// $Revision: 25453 $
+
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/aux_/type_wrapper.hpp>
+#include <boost/mpl/aux_/yes_no.hpp>
+
+#include <boost/type_traits/is_reference.hpp>
+
+namespace boost { namespace mpl { namespace aux {
+
+template< typename T > struct is_class_helper
+{
+    typedef int (T::* type)();
+};
+
+// MSVC 6.x-specific lightweight 'is_class' implementation; 
+// Distinguishing feature: does not instantiate the type being tested.
+template< typename T >
+struct msvc_is_class_impl
+{
+    template< typename U>
+    static yes_tag  test(type_wrapper<U>*, /*typename*/ is_class_helper<U>::type = 0);
+    static no_tag   test(void const volatile*, ...);
+
+    enum { value = sizeof(test((type_wrapper<T>*)0)) == sizeof(yes_tag) };
+    typedef bool_<value> type;
+};
+
+// agurt, 17/sep/04: have to check for 'is_reference' upfront to avoid ICEs in
+// complex metaprograms
+template< typename T >
+struct msvc_is_class
+    : if_<
+          is_reference<T>
+        , false_
+        , msvc_is_class_impl<T>
+        >::type
+{
+};
+
+}}}
+
+#endif // BOOST_MPL_AUX_MSVC_IS_CLASS_HPP_INCLUDED