Start using the mediaControlsOverlayPlayButtonEnabled setting

Source/core/rendering/RenderThemeChromiumMac.mm

Index: Source/core/rendering/RenderThemeChromiumMac.mm
diff --git a/Source/core/rendering/RenderThemeChromiumMac.mm b/Source/core/rendering/RenderThemeChromiumMac.mm
index c5842049b1d784c2d4ae78e098c637c5a91bd9a6..4139e77b213138ad51c7c3d84423f83a754fc19a 100644
--- a/Source/core/rendering/RenderThemeChromiumMac.mm
+++ b/Source/core/rendering/RenderThemeChromiumMac.mm
@@ -1833,6 +1833,11 @@ bool RenderThemeChromiumMac::paintMediaPlayButton(RenderObject* object, const Pa
     return RenderMediaControls::paintMediaControlsPart(MediaPlayButton, object, paintInfo, rect);
 }
 
+bool RenderThemeChromiumMac::paintMediaOverlayPlayButton(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
+{
+    return RenderMediaControls::paintMediaControlsPart(MediaOverlayPlayButton, object, paintInfo, rect);
+}
+
 bool RenderThemeChromiumMac::paintMediaMuteButton(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
 {
     return RenderMediaControls::paintMediaControlsPart(MediaMuteButton, object, paintInfo, rect);