Componentize about_flags::FeatureEntry in flags_ui component.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index e02eda8e3073ad72a7cfb3efc430a373c4abb359..69c11fffa2c85591fab1a499d2149d997e27bf3d 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -5765,18 +5765,6 @@ Keep your key file in a safe place. You will need it to create new versions of y
         </message>
       </if>
 
-      <message name="IDS_GENERIC_EXPERIMENT_CHOICE_AUTOMATIC" desc="Generic 'Automatic' experiment choice option name.">
-        Automatic
-      </message>
-      <message name="IDS_GENERIC_EXPERIMENT_CHOICE_DEFAULT" desc="Generic 'Default' experiment choice option name. E.G. shown in multi value options in about:flags.">
-        Default
-      </message>
-      <message name="IDS_GENERIC_EXPERIMENT_CHOICE_ENABLED" desc="Generic 'Enabled' experiment choice option name. E.G. shown in multi value options in about:flags.">
-        Enabled
-      </message>
-      <message name="IDS_GENERIC_EXPERIMENT_CHOICE_DISABLED" desc="Generic 'Disabled' experiment choice option name. E.G. shown in multi value options in about:flags.">
-        Disabled
-      </message>
       <message name="IDS_FLAGS_DISABLE_JAVASCRIPT_HARMONY_SHIPPING_NAME" desc="Title for the flag to disable latest (non-experimental) JavaScript fatures">
         Disable latest stable JavaScript features
       </message>