cef/patch/patches/spi_webcore_364.patch

diff --git platform/scroll/ScrollbarThemeMacCommon.mm platform/scroll/ScrollbarThemeMacCommon.mm
index 90abb7c..6bb16c6 100644
--- platform/scroll/ScrollbarThemeMacCommon.mm
+++ platform/scroll/ScrollbarThemeMacCommon.mm
@@ -354,10 +354,14 @@ NSScrollerStyle ScrollbarThemeMacCommon::recommendedScrollerStyle()
 // static
 bool ScrollbarThemeMacCommon::isOverlayAPIAvailable()
 {
+#if 0
     static bool apiAvailable =
         [NSClassFromString(@"NSScrollerImp") respondsToSelector:@selector(scrollerImpWithStyle:controlSize:horizontal:replacingScrollerImp:)]
         && [NSClassFromString(@"NSScrollerImpPair") instancesRespondToSelector:@selector(scrollerStyle)];
     return apiAvailable;
+#else
+    return false;
+#endif
 }
 
 } // namespace blink