Add gmock into our dependencies.

third_party/boost/boost/type_traits/decay.hpp

Index: third_party/boost/boost/type_traits/decay.hpp
diff --git a/third_party/boost/boost/type_traits/decay.hpp b/third_party/boost/boost/type_traits/decay.hpp
new file mode 100644
index 0000000000000000000000000000000000000000..c23a9b0f15a63b023265b462396446158107cc03
--- /dev/null
+++ b/third_party/boost/boost/type_traits/decay.hpp
@@ -0,0 +1,44 @@
+//  (C) Copyright John Maddock & Thorsten Ottosen 2005.
+//  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_DECAY_HPP_INCLUDED
+#define BOOST_TT_DECAY_HPP_INCLUDED
+
+#include <boost/type_traits/config.hpp>
+#include <boost/type_traits/is_array.hpp>
+#include <boost/type_traits/is_function.hpp>
+#include <boost/type_traits/remove_bounds.hpp>
+#include <boost/type_traits/add_pointer.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/identity.hpp>
+
+namespace boost 
+{
+
+    template< class T >
+    struct decay
+    {
+    private:
+        typedef BOOST_DEDUCED_TYPENAME remove_reference<T>::type Ty;
+    public:
+        typedef BOOST_DEDUCED_TYPENAME mpl::eval_if< 
+            is_array<Ty>,
+            mpl::identity<BOOST_DEDUCED_TYPENAME remove_bounds<Ty>::type*>,
+            BOOST_DEDUCED_TYPENAME mpl::eval_if< 
+                is_function<Ty>,
+                add_pointer<Ty>,
+                mpl::identity<Ty>
+            >
+        >::type type;
+    };
+    
+} // namespace boost
+
+
+#endif // BOOST_TT_DECAY_HPP_INCLUDED