Add gmock into our dependencies.

third_party/boost/boost/fusion/container/vector/detail/value_at_impl.hpp

Index: third_party/boost/boost/fusion/container/vector/detail/value_at_impl.hpp
diff --git a/third_party/boost/boost/fusion/container/vector/detail/value_at_impl.hpp b/third_party/boost/boost/fusion/container/vector/detail/value_at_impl.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..0178054b410f2d4d8f108d0f2bda607b26a0b442
--- /dev/null
+++ b/third_party/boost/boost/fusion/container/vector/detail/value_at_impl.hpp
@@ -0,0 +1,33 @@
+/*=============================================================================
+    Copyright (c) 2001-2006 Joel de Guzman
+
+    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)
+==============================================================================*/
+#if !defined(FUSION_VALUE_AT_IMPL_05052005_0232)
+#define FUSION_VALUE_AT_IMPL_05052005_0232
+
+#include <boost/mpl/at.hpp>
+
+namespace boost { namespace fusion
+{
+    struct vector_tag;
+
+    namespace extension
+    {
+        template <typename Tag>
+        struct value_at_impl;
+
+        template <>
+        struct value_at_impl<vector_tag>
+        {
+            template <typename Sequence, typename N>
+            struct apply 
+            {
+                typedef typename mpl::at<typename Sequence::types, N>::type type;
+            };
+        };
+    }
+}}
+
+#endif