From cd46194bb0e42ec2f573e999ed420a956861b781 Mon Sep 17 00:00:00 2001
From: YUKI Hiroshi <shimoda@clear-code.com>
Date: Tue, 3 Mar 2015 19:10:35 +0900
Subject: [PATCH] Return boolean value for "isXXX" property

---
 modules/window.js | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/modules/window.js b/modules/window.js
index 45b68f10..e289d633 100644
--- a/modules/window.js
+++ b/modules/window.js
@@ -283,12 +283,13 @@ TreeStyleTabWindow.prototype = inherit(TreeStyleTabBase, {
  
 	get isAutoHide() 
 	{
-		return this.window.fullScreen ?
-				(
-					prefs.getPref('browser.fullscreen.autohide') &&
-					utils.getTreePref('tabbar.autoHide.mode.fullscreen')
-				) :
-				utils.getTreePref('tabbar.autoHide.mode');
+		if (this.window.fullScreen)
+			return Boolean(
+				prefs.getPref('browser.fullscreen.autohide') &&
+				utils.getTreePref('tabbar.autoHide.mode.fullscreen')
+			);
+
+		return utils.getTreePref('tabbar.autoHide.mode') != this.autoHide.kMODE_DISABLED;
 	},
  
 	get autoHideWindow()