Update the default generic font family settings for Chinese/Japanese

chrome/app/resources/locale_settings_mac.grd

Index: chrome/app/resources/locale_settings_mac.grd
diff --git a/chrome/app/resources/locale_settings_mac.grd b/chrome/app/resources/locale_settings_mac.grd
index 91d4b78ddbb35fad96bb587474602e6c06cc3771..812c18b6df9eeb7e7e149f9d34d821524dec7e9c 100644
--- a/chrome/app/resources/locale_settings_mac.grd
+++ b/chrome/app/resources/locale_settings_mac.grd
@@ -209,7 +209,7 @@
       <!-- The default value for |WebPreference::standard_font_family_map| for
            Simplified Chinese script. -->
       <message name="IDS_STANDARD_FONT_FAMILY_SIMPLIFIED_HAN" use_name_for_id="true">
-        STHeiti
+        ,PingFang SC,STHeiti
       </message>
 
       <!-- The default value for |WebPreference::serif_font_family_map| for
@@ -221,13 +221,19 @@
       <!-- The default value for |WebPreference::sans_serif_font_family_map| for
            Simplified Chinese script.  -->
       <message name="IDS_SANS_SERIF_FONT_FAMILY_SIMPLIFIED_HAN" use_name_for_id="true">
-        STHeiti
+        ,PingFang SC,STHeiti
+      </message>
+
+      <!-- The default value for |WebPreference::cursive_font_family_map| for
+           Simplified Chinese script.  -->
+      <message name="IDS_CURSIVE_FONT_FAMILY_SIMPLIFIED_HAN" use_name_for_id="true">
+        Kaiti SC
       </message>
 
       <!-- The default value for |WebPreference::standard_font_family_map| for
            Traditional Chinese script. -->
       <message name="IDS_STANDARD_FONT_FAMILY_TRADITIONAL_HAN" use_name_for_id="true">
-        Heiti TC
+        ,PingFang TC,Heiti TC
       </message>
 
       <!-- The default value for |WebPreference::serif_font_family_map| for
@@ -239,7 +245,13 @@
       <!-- The default value for |WebPreference::sans_serif_font_family_map| for
            Traditional Chinese script.  -->
       <message name="IDS_SANS_SERIF_FONT_FAMILY_TRADITIONAL_HAN" use_name_for_id="true">
-        Heiti TC
+        ,PingFang TC,Heiti TC
+      </message>
+
+      <!-- The default value for |WebPreference::cursive_font_family_map| for
+           Traditional Chinese script.  -->
+      <message name="IDS_CURSIVE_FONT_FAMILY_TRADITIONAL_HAN" use_name_for_id="true">
+        Kaiti TC
       </message>
 
       <!-- The default value for |WebPreference::default_font_size| -->