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mojo/system/core_impl.h

Index: mojo/system/core_impl.h
diff --git a/mojo/system/core_impl.h b/mojo/system/core_impl.h
index 1417a06d60a7fa44bc4a328bc17d61a0108ee9e4..aede29deffb96794b8ce97160e303ddeffe88051 100644
--- a/mojo/system/core_impl.h
+++ b/mojo/system/core_impl.h
@@ -25,7 +25,7 @@ class CoreTestBase;
 // the (obvious) exception of |Init()|, which must be called first (and the call
 // completed) before making any other calls, all the public methods are
 // thread-safe.
-class CoreImpl {
+class MOJO_SYSTEM_EXPORT CoreImpl {
  public:
   static void Init();