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-rw-r--r--Source/WebCore/platform/mac/MIMETypeRegistryMac.mm3
1 files changed, 3 insertions, 0 deletions
diff --git a/Source/WebCore/platform/mac/MIMETypeRegistryMac.mm b/Source/WebCore/platform/mac/MIMETypeRegistryMac.mm
index 82348e0..3792b5a 100644
--- a/Source/WebCore/platform/mac/MIMETypeRegistryMac.mm
+++ b/Source/WebCore/platform/mac/MIMETypeRegistryMac.mm
@@ -28,12 +28,15 @@
#include "MIMETypeRegistry.h"
#include "WebCoreSystemInterface.h"
+#include <wtf/Assertions.h>
+#include <wtf/MainThread.h>
namespace WebCore
{
String MIMETypeRegistry::getMIMETypeForExtension(const String &ext)
{
+ ASSERT(isMainThread());
return wkGetMIMETypeForExtension(ext);
}