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-rw-r--r--base/synchronization/lock_impl.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/base/synchronization/lock_impl.h b/base/synchronization/lock_impl.h
index 2994610..79bc147 100644
--- a/base/synchronization/lock_impl.h
+++ b/base/synchronization/lock_impl.h
@@ -14,6 +14,7 @@
#include <pthread.h>
#endif
+#include "base/base_api.h"
#include "base/basictypes.h"
namespace base {
@@ -22,7 +23,7 @@ namespace internal {
// This class implements the underlying platform-specific spin-lock mechanism
// used for the Lock class. Most users should not use LockImpl directly, but
// should instead use Lock.
-class LockImpl {
+class BASE_API LockImpl {
public:
#if defined(OS_WIN)
typedef CRITICAL_SECTION OSLockType;