Add gmock into our dependencies.

third_party/boost/boost/type_traits/detail/type_trait_def.hpp

Index: third_party/boost/boost/type_traits/detail/type_trait_def.hpp
diff --git a/third_party/boost/boost/type_traits/detail/type_trait_def.hpp b/third_party/boost/boost/type_traits/detail/type_trait_def.hpp
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index 0000000000000000000000000000000000000000..644c7ac90952f33687be6a315786ef34a5441f2a
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+++ b/third_party/boost/boost/type_traits/detail/type_trait_def.hpp
@@ -0,0 +1,61 @@
+
+// NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
+
+// 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)
+
+// $Source$
+// $Date: 2004-09-02 11:41:37 -0400 (Thu, 02 Sep 2004) $
+// $Revision: 24874 $
+
+#include <boost/type_traits/detail/template_arity_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+
+#define BOOST_TT_AUX_TYPE_TRAIT_DEF1(trait,T,result) \
+template< typename T > struct trait \
+{ \
+    typedef result type; \
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,trait,(T)) \
+}; \
+\
+BOOST_TT_AUX_TEMPLATE_ARITY_SPEC(1,trait) \
+/**/
+
+#define BOOST_TT_AUX_TYPE_TRAIT_SPEC1(trait,spec,result) \
+template<> struct trait<spec> \
+{ \
+    typedef result type; \
+    BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(1,trait,(spec)) \
+}; \
+/**/
+
+#define BOOST_TT_AUX_TYPE_TRAIT_IMPL_SPEC1(trait,spec,result) \
+template<> struct trait##_impl<spec> \
+{ \
+    typedef result type; \
+}; \
+/**/
+
+#define BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(param,trait,spec,result) \
+template< param > struct trait<spec> \
+{ \
+    typedef result type; \
+}; \
+/**/
+
+#define BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_2(param1,param2,trait,spec,result) \
+template< param1, param2 > struct trait<spec> \
+{ \
+    typedef result; \
+}; \
+/**/
+
+#define BOOST_TT_AUX_TYPE_TRAIT_IMPL_PARTIAL_SPEC1_1(param,trait,spec,result) \
+template< param > struct trait##_impl<spec> \
+{ \
+    typedef result type; \
+}; \
+/**/