Prepare for updating Noto fonts on CrOS

Use Noto Color Emoji instead of Noto Sans Emoji.

In an upcoming update, Noto Sans Emoji is also renamed Noto Emoji.

https://chromium-review.googlesource.com/320493 will be landed after this.

BUG=574585

Review URL: https://codereview.chromium.org/1562623002

Cr-Commit-Position: refs/heads/master@{#371848}

chrome/app/resources/locale_settings_chromiumos.grd

@@ -149,7 +149,7 @@
 
       <!-- The default value for |WebPreference::pictograph_font_family| -->
       <message name="IDS_PICTOGRAPH_FONT_FAMILY" use_name_for_id="true">
-        Noto Sans Emoji
+        Noto Color Emoji
       </message>
 
       <!-- The default value for |WebPreference::standard_font_family_map| for

chrome/app/resources/locale_settings_google_chromeos.grd

@@ -149,7 +149,7 @@
 
       <!-- The default value for |WebPreference::pictograph_font_family| -->
       <message name="IDS_PICTOGRAPH_FONT_FAMILY" use_name_for_id="true">
-        Noto Sans Emoji
+        Noto Color Emoji
       </message>
 
       <!-- The default value for |WebPreference::standard_font_family_map| for