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-rw-r--r--chromium/ppapi/utility/threading/simple_thread.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/chromium/ppapi/utility/threading/simple_thread.h b/chromium/ppapi/utility/threading/simple_thread.h
index b4d7114cc4e..d10c8599654 100644
--- a/chromium/ppapi/utility/threading/simple_thread.h
+++ b/chromium/ppapi/utility/threading/simple_thread.h
@@ -8,6 +8,9 @@
#include <stddef.h>
#ifdef WIN32
#include <windows.h>
+// MemoryBarrier is a Win32 macro that clashes with MemoryBarrier in
+// base/atomicops.h.
+#undef MemoryBarrier
#else
#include <pthread.h>
#endif