Add gmock into our dependencies.

third_party/boost/boost/mpl/bool.hpp

Index: third_party/boost/boost/mpl/bool.hpp
diff --git a/third_party/boost/boost/mpl/bool.hpp b/third_party/boost/boost/mpl/bool.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..dbe6a1efed0c0a3128e2b16ffb76b90acc81b980
--- /dev/null
+++ b/third_party/boost/boost/mpl/bool.hpp
@@ -0,0 +1,39 @@
+
+#ifndef BOOST_MPL_BOOL_HPP_INCLUDED
+#define BOOST_MPL_BOOL_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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: 2004-09-26 05:54:25 -0400 (Sun, 26 Sep 2004) $
+// $Revision: 25411 $
+
+#include <boost/mpl/bool_fwd.hpp>
+#include <boost/mpl/integral_c_tag.hpp>
+#include <boost/mpl/aux_/config/static_constant.hpp>
+
+BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN
+
+template< bool C_ > struct bool_
+{
+    BOOST_STATIC_CONSTANT(bool, value = C_);
+    typedef integral_c_tag tag;
+    typedef bool_ type;
+    typedef bool value_type;
+    operator bool() const { return this->value; }
+};
+
+#if !defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION)
+template< bool C_ >
+bool const bool_<C_>::value;
+#endif
+
+BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE
+
+#endif // BOOST_MPL_BOOL_HPP_INCLUDED