[futures.atomic_future] and notify_all_at_thread_exit.  This completes the header <future> and all of Chapter 30 (for C++0x enabled compilers).

llvm-svn: 113017
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: b77c0c03bb5f48c7ff98aa0d8dd5c648e8a1a651
diff --git a/include/condition_variable b/include/condition_variable
index 3e766b6..aacae0a 100644
--- a/include/condition_variable
+++ b/include/condition_variable
@@ -246,6 +246,8 @@
                       _STD::move(__pred));
 }
 
+void notify_all_at_thread_exit(condition_variable& cond, unique_lock<mutex> lk);
+
 _LIBCPP_END_NAMESPACE_STD
 
 #endif  // _LIBCPP_CONDITION_VARIABLE