Adds emoji/handwriting/vocie buttons on opt-in IME menu.

ash/ash_chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- ChromeOS-specific strings (included from ash_strings.grd).
      Everything in this file is wrapped in <if expr="chromeos">. -->
 <grit-part>
 
   <!-- Device types -->
   <message name="IDS_ASH_CHROMEBASE" desc="The device name for a Chromebase (versus say Chromebox)">
     Chromebase
   </message>
   <message name="IDS_ASH_CHROMEBIT" desc="The device name for a Chromebit (versus say Chromebox)">
@@ skipping 468 matching lines @@
   </message>
   <message name="IDS_ASH_LOGOUT_CONFIRMATION_WARNING" desc="The text for the logout confirmation dialog.">
     You will automatically be signed out in <ph name="LOGOUT_TIME_LEFT">$1<ex>5 seconds</ex></ph>.
   </message>
   <message name="IDS_ASH_LOGOUT_CONFIRMATION_WARNING_NOW" desc="The text for the logout confirmation dialog with no time left.">
     You will be signed out now.
   </message>
   <message name="IDS_ASH_LOGOUT_CONFIRMATION_BUTTON" desc="The text for okay button of the logout confirmation dialog.">
     Sign out now
   </message>
+  <message name="IDS_ASH_STATUS_TRAY_EMOJI" desc="The label used for the emoji item in the IME menu tray.">
+    Emoji palette
+  </message>
+  <message name="IDS_ASH_STATUS_TRAY_HANDWRITING" desc="The label used for the handwriting item in the IME menu tray.">
+    Handwriting input
+  </message>
+  <message name="IDS_ASH_STATUS_TRAY_VOICE" desc="The label used for the voice item in the IME menu tray.">
+    Voice input
+  </message>
 
   <!-- HaTS Strings -->
   <message name="IDS_ASH_HATS_NOTIFICATION_TITLE" desc="The title of the notification for Happiness Tracking Survey.">
     Help us improve Chromebooks
   </message>
   <message name="IDS_ASH_HATS_NOTIFICATION_BODY" desc="The body of the notification for Happiness Tracking Survey.">
     <!-- TODO(malaykeshav): Implement the actual HaTS notification strings -->
     Chrome OS HaTS survey text here. Chrome OS HaTS survey text here. Chrome OS HaTS survey text here. Chrome OS HaTS survey text here.
   </message>
   <message name="IDS_ASH_HATS_NOTIFICATION_TAKE_SURVEY_BUTTON" desc="The title of the button in the notification for Happiness Tracking Survey to take the said survey.">
@@ skipping 37 matching lines @@
   </message>
   <message name="IDS_DEPRECATED_SHOW_TASK_MANAGER_MSG"
            desc="Notification message to tell users about the deprecation of Shift+ESC shortcut to show the task manager.">
     The shortcut to open the task manager has changed. Please use <ph name="NEW_SHORTCUT">$1<ex>Search+Esc</ex></ph> instead of <ph name="OLD_SHORTCUT">$2<ex>Shift+Esc</ex></ph>.
   </message>
   <message name="IDS_DEPRECATED_NEXT_IME_MSG"
            desc="Notification message to tell users about the deprecation of Shift+Alt shortcut to switch to the next input method.">
     The shortcut to switch to the next input method has changed. Please use <ph name="NEW_SHORTCUT">$1<ex>Ctrl+Shift+Space</ex></ph> instead of <ph name="OLD_SHORTCUT">$2<ex>Shift+Alt</ex></ph>.
   </message>
 </grit-part>