HTMLMediaElement: Add logarithmic volume controls

assets/HTMLMediaElement.mjs

@@ -0,0 +1,15 @@
+'use strict';
+
+(function() {
+	// Used by PulseAudio, sounds good enough.
+	const EXPONENT = 3;
+
+	Object.defineProperty(HTMLMediaElement.prototype, 'logVolume', {
+		get () {
+			return this.volume ** (1 / EXPONENT);
+		},
+		set (originalVolume) {
+			this.volume = originalVolume ** EXPONENT;
+		}
+	});
+})();