Add gmock into our dependencies.

third_party/boost/boost/mpl/aux_/config/overload_resolution.hpp

Index: third_party/boost/boost/mpl/aux_/config/overload_resolution.hpp
diff --git a/third_party/boost/boost/mpl/aux_/config/overload_resolution.hpp b/third_party/boost/boost/mpl/aux_/config/overload_resolution.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..e8c570c5bf2461c74f804db7084cc78f6d3aa895
--- /dev/null
+++ b/third_party/boost/boost/mpl/aux_/config/overload_resolution.hpp
@@ -0,0 +1,29 @@
+
+#ifndef BOOST_MPL_AUX_CONFIG_OVERLOAD_RESOLUTION_HPP_INCLUDED
+#define BOOST_MPL_AUX_CONFIG_OVERLOAD_RESOLUTION_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: 2007-11-25 13:07:19 -0500 (Sun, 25 Nov 2007) $
+// $Revision: 41369 $
+
+#include <boost/mpl/aux_/config/workaround.hpp>
+
+#if    !defined(BOOST_MPL_CFG_BROKEN_OVERLOAD_RESOLUTION) \
+    && !defined(BOOST_MPL_PREPROCESSING_MODE) \
+    && (   BOOST_WORKAROUND(__BORLANDC__, < 0x590) \
+        || BOOST_WORKAROUND(__MWERKS__, < 0x3001) \
+        )
+
+#   define BOOST_MPL_CFG_BROKEN_OVERLOAD_RESOLUTION
+
+#endif
+
+#endif // BOOST_MPL_AUX_CONFIG_OVERLOAD_RESOLUTION_HPP_INCLUDED