Update from https://crrev.com/320931

base/mac/scoped_mach_port.h

Index: base/mac/scoped_mach_port.h
diff --git a/base/mac/scoped_mach_port.h b/base/mac/scoped_mach_port.h
index 9ef90d66bf8a2c1947c68a26ff64e18675a2df37..beb62b032137a879645477abfa9da95f9584549c 100644
--- a/base/mac/scoped_mach_port.h
+++ b/base/mac/scoped_mach_port.h
@@ -20,7 +20,7 @@ struct BASE_EXPORT SendRightTraits {
     return MACH_PORT_NULL;
   }
 
-  static void Free(mach_port_t port);
+  BASE_EXPORT static void Free(mach_port_t port);
 };
 
 struct BASE_EXPORT ReceiveRightTraits {
@@ -28,7 +28,7 @@ struct BASE_EXPORT ReceiveRightTraits {
     return MACH_PORT_NULL;
   }
 
-  static void Free(mach_port_t port);
+  BASE_EXPORT static void Free(mach_port_t port);
 };
 
 struct PortSetTraits {
@@ -36,7 +36,7 @@ struct PortSetTraits {
     return MACH_PORT_NULL;
   }
 
-  static void Free(mach_port_t port);
+  BASE_EXPORT static void Free(mach_port_t port);
 };
 
 }  // namespace internal