cros: add SUGGESTED APPS indicator to start page

ui/strings/ui_strings.grd

Index: ui/strings/ui_strings.grd
diff --git a/ui/strings/ui_strings.grd b/ui/strings/ui_strings.grd
index 78f9fe70419cec30ec2bda192e785d1bc2076300..4672e6a53ccadfb989f74d26e55a073e2437b7b2 100644
--- a/ui/strings/ui_strings.grd
+++ b/ui/strings/ui_strings.grd
@@ -675,6 +675,12 @@ need to be translated for each locale.-->
       </if>
 
       <!-- App list -->
+      <message name="IDS_SUGGESTED_APPS_INDICATOR" desc="Indicator text in app list on top of suggested apps.">
+        SUGGESTED APPS
+      </message>
+      <message name="IDS_ALL_APPS_INDICATOR" desc="Indicator text in app list on top of all apps.">
+        ALL APPS
+      </message>
       <message name="IDS_APP_LIST_BACK" desc="The name of the button that goes to the previous screen in the launcher.">
         Back
       </message>