mac: Plumbing for the emoji font.

chrome/app/resources/locale_settings_mac.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <grit latest_public_release="0" current_release="1">
   <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 139 matching lines @@
       <!-- The default value for |WebPreference::cursive_font_family| -->
       <message name="IDS_CURSIVE_FONT_FAMILY" use_name_for_id="true">
         Apple Chancery
       </message>
 
       <!-- The default value for |WebPreference::fantasy_font_family| -->
       <message name="IDS_FANTASY_FONT_FAMILY" use_name_for_id="true">
         Papyrus
       </message>
 
+      <!-- The default value for |WebPreference::pictograph_font_family| -->
+      <message name="IDS_PICTOGRAPH_FONT_FAMILY" use_name_for_id="true">
+        Apple Color Emoji
+      </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">
         Hiragino Kaku Gothic Pro
       </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">
         Osaka-Mono
@@ skipping 80 matching lines @@
         0
       </message>
 
       <!-- The default value for |WebPreference::minimum_logical_font_size|. -->
       <message name="IDS_MINIMUM_LOGICAL_FONT_SIZE" use_name_for_id="true">
         9
       </message>
     </messages>
   </release>
 </grit>