Hide ScopedTrace.
(cherry-pick of f2c1e7ee78a167ff323b9f45d20532d064d6778d.)
Bug: 11156955
Change-Id: I6cddc868d1c6503e30f1ffcf460f45670631d64a
diff --git a/libc/private/bionic_systrace.h b/libc/private/bionic_systrace.h
index ad9ff7f..0b4560f 100644
--- a/libc/private/bionic_systrace.h
+++ b/libc/private/bionic_systrace.h
@@ -23,7 +23,7 @@
// ScopedTrace("Trace message");
// The trace will end when the contructor goes out of scope.
-class ScopedTrace {
+class __LIBC_HIDDEN__ ScopedTrace {
public:
explicit ScopedTrace(const char* message);
~ScopedTrace();