Add gmock into our dependencies.

third_party/boost/boost/type_traits/is_scalar.hpp

Index: third_party/boost/boost/type_traits/is_scalar.hpp
diff --git a/third_party/boost/boost/type_traits/is_scalar.hpp b/third_party/boost/boost/type_traits/is_scalar.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..4af3def14c76a4852e8455dd343c3461e3d98277
--- /dev/null
+++ b/third_party/boost/boost/type_traits/is_scalar.hpp
@@ -0,0 +1,55 @@
+
+//  (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
+//  Use, modification and distribution are subject to 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/type_traits for most recent version including documentation.
+
+#ifndef BOOST_TT_IS_SCALAR_HPP_INCLUDED
+#define BOOST_TT_IS_SCALAR_HPP_INCLUDED
+
+#include <boost/type_traits/is_arithmetic.hpp>
+#include <boost/type_traits/is_enum.hpp>
+#include <boost/type_traits/is_pointer.hpp>
+#include <boost/type_traits/is_member_pointer.hpp>
+#include <boost/type_traits/detail/ice_or.hpp>
+#include <boost/config.hpp>
+
+// should be the last #include
+#include <boost/type_traits/detail/bool_trait_def.hpp>
+
+namespace boost {
+
+namespace detail {
+
+template <typename T>
+struct is_scalar_impl
+{ 
+   BOOST_STATIC_CONSTANT(bool, value =
+      (::boost::type_traits::ice_or<
+         ::boost::is_arithmetic<T>::value,
+         ::boost::is_enum<T>::value,
+         ::boost::is_pointer<T>::value,
+         ::boost::is_member_pointer<T>::value
+      >::value));
+};
+
+// these specializations are only really needed for compilers 
+// without partial specialization support:
+template <> struct is_scalar_impl<void>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
+#ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS
+template <> struct is_scalar_impl<void const>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
+template <> struct is_scalar_impl<void volatile>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
+template <> struct is_scalar_impl<void const volatile>{ BOOST_STATIC_CONSTANT(bool, value = false ); };
+#endif
+
+} // namespace detail
+
+BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_scalar,T,::boost::detail::is_scalar_impl<T>::value)
+
+} // namespace boost
+
+#include <boost/type_traits/detail/bool_trait_undef.hpp>
+
+#endif // BOOST_TT_IS_SCALAR_HPP_INCLUDED