src/vs/platform/keybinding/common/keybindingsRegistry.ts/KeybindingsRegistryImpl/bindToCurrentPlatform
class KeybindingsRegistryImpl:	private static bindToCurrentPlatform(kb: IKeybindings): { primary?: number; secondary?: number[]; } {
		if (OS === OperatingSystem.Windows) {
			if (kb && kb.win) {
				return kb.win;
			}
		} else if (OS === OperatingSystem.Macintosh) {
			if (kb && kb.mac) {
				return kb.mac;
			}
		} else {
			if (kb && kb.linux) {
				return kb.linux;
			}
		}

		return kb;
	}