Update the default generic font family settings for Chinese/Japanese

chrome/app/resources/locale_settings_win.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <grit latest_public_release="0" current_release="1" output_all_resource_defines="false">
   <outputs>
     <output filename="grit/platform_locale_settings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
     </output>
     <output filename="platform_locale_settings_am.pak" type="data_package" lang="am" />
     <output filename="platform_locale_settings_ar.pak" type="data_package" lang="ar" />
     <output filename="platform_locale_settings_bg.pak" type="data_package" lang="bg" />
     <output filename="platform_locale_settings_bn.pak" type="data_package" lang="bn" />
@@ skipping 202 matching lines @@
 
       <!-- The default value for |WebPreference::sans_serif_font_family_map| for
            Greek script.  -->
       <message name="IDS_SANS_SERIF_FONT_FAMILY_GREEK" use_name_for_id="true">
         Arial
       </message>
 
       <!-- The default value for |WebPreference::standard_font_family_map| for
            Japanese script. -->
       <message name="IDS_STANDARD_FONT_FAMILY_JAPANESE" use_name_for_id="true">
-        Meiryo
-      </message>
-
-      <!-- The alternate value for |WebPreference::standard_font_family_map| for
-           Japanese script. -->
-      <message name="IDS_STANDARD_FONT_FAMILY_JAPANESE_ALT_WIN" use_name_for_id="true">
-        Yu Gothic
+        ,Meiryo,Yu Gothic
       </message>
 
       <!-- The default value for |WebPreference::fixed_font_family_map| for
            Japanese script. -->
       <message name="IDS_FIXED_FONT_FAMILY_JAPANESE" use_name_for_id="true">
         MS Gothic
       </message>
 
       <!-- The default value for |WebPreference::serif_font_family_map| for
            Japanese script. -->
       <message name="IDS_SERIF_FONT_FAMILY_JAPANESE" use_name_for_id="true">
-        MS PMincho
+        ,Yu Mincho,MS PMincho,Times New Roman

[jungshik at Google, 2016/11/01 00:12:02]

What's the point of Times New Roman at the end? It does not cover Japanese so
that having it just delays the trigger of next font fallback process, no? 

[kojii, 2016/11/01 02:35:23]

Yes. English Win10 has 0 serif Japanese font, so doing this will:
* Japanese will fallback to next, then to system fallback that uses Meiryo/Yu
Gothic.
* Latin characters can use serif font.
Not really ideal, but at least Latin rendered in serif looks good to me. WDYT?

       </message>
 
       <!-- The default value for |WebPreference::sans_serif_font_family_map| for
            Japanese script.  -->
       <message name="IDS_SANS_SERIF_FONT_FAMILY_JAPANESE" use_name_for_id="true">
-        Meiryo
-      </message>
-
-      <!-- The alternate value for |WebPreference::sans_serif_font_family_map| for
-           Japanese script. -->
-      <message name="IDS_SANS_SERIF_FONT_FAMILY_JAPANESE_ALT_WIN" use_name_for_id="true">
-        Yu Gothic
+        ,Meiryo,Yu Gothic
       </message>
 
 
      <!-- The default value for |WebPreference::standard_font_family_map| for
            Korean script. -->
       <message name="IDS_STANDARD_FONT_FAMILY_KOREAN" use_name_for_id="true">
         Malgun Gothic
       </message>
 
       <!-- The default value for |WebPreference::fixed_font_family_map| for
@@ skipping 37 matching lines @@
       <message name="IDS_SERIF_FONT_FAMILY_SIMPLIFIED_HAN" use_name_for_id="true">
         Simsun
       </message>
 
       <!-- 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">
         Microsoft YaHei
       </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
+      </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">
         Microsoft JhengHei

[jungshik at Google, 2016/11/01 00:12:01]

Does non-Trad-Chinese Windows 10 (out-of-box) have this font and other TC fonts?
If not, shouldn't we do the same for TC? 

[kojii, 2016/11/01 02:35:23]

It does, and this font is available since Vista, so we don't need fallback on
any supported platforms.

Japanese added Meiryo in Vista, but then Yu Gothic in 8.1, and Win10 defaulting
to Yu Gothic. Vista and Win10 using different default needs
first-available-list, but Chinese use the same default.

       </message>
 
       <!-- The default value for |WebPreference::fixed_font_family_map| for
            Traditional Chinese script. -->
       <message name="IDS_FIXED_FONT_FAMILY_TRADITIONAL_HAN" use_name_for_id="true">
         MingLiU
       </message>
 
       <!-- The default value for |WebPreference::serif_font_family_map| for
            Traditional Chinese script. -->
       <message name="IDS_SERIF_FONT_FAMILY_TRADITIONAL_HAN" use_name_for_id="true">
         PMingLiU
       </message>
 
       <!-- 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">
         Microsoft JhengHei
       </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">
+        DFKai-SB
+      </message>
+
       <!-- The default value for |WebPreference::default_font_size| -->
       <message name="IDS_DEFAULT_FONT_SIZE" use_name_for_id="true">
         16
       </message>
 
       <!-- The default value for |WebPreference::default_fixed_font_size| -->
       <message name="IDS_DEFAULT_FIXED_FONT_SIZE" use_name_for_id="true">
         13
       </message>
 
       <!-- The default value for |WebPreference::minimum_font_size| -->
       <message name="IDS_MINIMUM_FONT_SIZE" use_name_for_id="true">
         0
       </message>
 
       <!-- The default value for |WebPreference::minimum_logical_font_size|. -->
       <message name="IDS_MINIMUM_LOGICAL_FONT_SIZE" use_name_for_id="true">
         6
       </message>
     </messages>
   </release>
 </grit>