Update Mac fonts

chrome/app/resources/locale_settings_zh-TW.xtb

Index: chrome/app/resources/locale_settings_zh-TW.xtb
===================================================================
--- chrome/app/resources/locale_settings_zh-TW.xtb	(revision 30581)
+++ chrome/app/resources/locale_settings_zh-TW.xtb	(working copy)
@@ -1,16 +1,30 @@
 <?xml version="1.0" ?>
 <!DOCTYPE translationbundle>
 <translationbundle lang="zh-TW">
-<translation id="IDS_WEB_FONT_FAMILY">Arial</translation>
+<if expr="os != 'darwin'">
+  <translation id="IDS_WEB_FONT_FAMILY">Arial</translation>
+</if>
+<if expr="os == 'darwin'">
+  <translation id="IDS_WEB_FONT_FAMILY">Helvetica, LiHei Pro</translation>
+</if>
 <translation id="IDS_WEB_FONT_SIZE">84%</translation>
 <translation id="IDS_ACCEPT_LANGUAGES">zh-TW,zh,en-US,en</translation>
 <translation id="IDS_DEFAULT_ENCODING">Big5</translation>
 <translation id="IDS_STANDARD_FONT_IS_SERIF">false</translation>
-<translation id="IDS_FIXED_FONT_FAMILY">Courier New</translation>
-<translation id="IDS_SERIF_FONT_FAMILY">Times New Roman</translation>
-<translation id="IDS_SANS_SERIF_FONT_FAMILY">Arial</translation>
-<translation id="IDS_CURSIVE_FONT_FAMILY">Comic Sans MS</translation>
-<translation id="IDS_FANTASY_FONT_FAMILY">Impact</translation>
+<if expr="os != 'darwin'">
+  <translation id="IDS_FIXED_FONT_FAMILY">Courier New</translation>
+  <translation id="IDS_SERIF_FONT_FAMILY">Times New Roman</translation>
+  <translation id="IDS_SANS_SERIF_FONT_FAMILY">Arial</translation>
+  <translation id="IDS_CURSIVE_FONT_FAMILY">Comic Sans MS</translation>
+  <translation id="IDS_FANTASY_FONT_FAMILY">Impact</translation>
+</if>
+<if expr="os == 'darwin'">
+  <translation id="IDS_FIXED_FONT_FAMILY">Courier</translation>
+  <translation id="IDS_SERIF_FONT_FAMILY">LiSong Pro</translation>
+  <translation id="IDS_SANS_SERIF_FONT_FAMILY">LiHei Pro</translation>
+  <translation id="IDS_CURSIVE_FONT_FAMILY">Apple Chancery</translation>
+  <translation id="IDS_FANTASY_FONT_FAMILY">Papyrus</translation>
+</if>
 <translation id="IDS_DEFAULT_FONT_SIZE">16</translation>
 <translation id="IDS_DEFAULT_FIXED_FONT_SIZE">13</translation>
 <translation id="IDS_MINIMUM_FONT_SIZE">12</translation>