Mojo + NaCl prototype.

mojo/public/cpp/system/handle.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_PUBLIC_CPP_SYSTEM_HANDLE_H_
 #define MOJO_PUBLIC_CPP_SYSTEM_HANDLE_H_
 
 #include <assert.h>
 #include <limits>
 
@@ skipping 220 matching lines @@
 template <class HandleType>
 inline void Close(ScopedHandleBase<HandleType> /*handle*/) {}
 
 // Most users should typically use |Close()| (above) instead.
 inline MojoResult CloseRaw(Handle handle) {
   return MojoClose(handle.value());
 }
 
 // Strict weak ordering, so that |Handle|s can be used as keys in |std::map|s,
 // etc.
+#ifdef __native_client__
+// Passing the operands by reference confuses the STL implementation in NaCl's
+// GCC toolchain and results in specialized templates that break strict aliasing
+// rules.
+// TODO(ncbray): unhack this.
+inline bool operator<(const Handle a, const Handle b) {
+#else
 inline bool operator<(const Handle& a, const Handle& b) {
+#endif
   return a.value() < b.value();
 }
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_SYSTEM_HANDLE_H_