cros: Update help for enable dev UI.

chrome/app/chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- ChromeOS-specific strings (included from generated_resources.grd).
      Everything in this file is wrapped in <if expr="chromeos">. -->
 <grit-part>
   <message name="IDS_EMPTY_STRING" desc="Empty string, exist only to make code generic. No translation required.">
   </message>
   <message name="IDS_CHROMEBOOK" desc="The localized name for Chromebook.">
     Chromebook
   </message>
   <message name="IDS_CHROMEBOX" desc="The localized name for Chromebox">
@@ skipping 2801 matching lines @@
   </message>
   <message name="IDS_ENABLE_DEBUGGING_WAIT_MESSAGE" desc="Confirmation message in dialog for enabling debugging features.">
     Please wait...
   </message>
   <message name="IDS_ENABLE_DEBUGGING_EMPTY_ROOT_PASSWORD_LABEL" desc="Text for root password entry field label from enable debugging features dialog.">
     leave empty if you want to set the root password to the default test image value
   </message>
   <message name="IDS_ENABLE_DEBUGGING_HELP" desc="Help content of the enable debugging features dialog.">
     <ph name="BEGIN_H3">&lt;h3&gt;</ph>Debugging Features<ph name="END_H3">&lt;/h3&gt;</ph>
     <ph name="BR">&lt;br&gt;</ph>
-    You can enable the debugging features on your Chromebook in order to install and test custom code on your device.  This will allow you to:<ph name="BR">&lt;br&gt;</ph>
+    You can enable the debugging features on your Chrome OS Device in order to install and test custom code on your device.  This will allow you to:<ph name="BR">&lt;br&gt;</ph>
     <ph name="BEGIN_LIST">&lt;ul&gt;</ph>
       <ph name="LIST_ITEM">&lt;li&gt;</ph>Remove rootfs verification so you can modify OS files
       <ph name="LIST_ITEM">&lt;li&gt;</ph>Enable SSH access to the device using the standard test keys so you can use tools such as <ph name="BEGIN_CODE">&lt;span style=&quot;color:grey;font-family:monospace&quot;&gt;</ph>&apos;cros flash&apos;<ph name="END_CODE">&lt;/span&gt;</ph> to access the device
       <ph name="LIST_ITEM">&lt;li&gt;</ph>Enable booting from USB so you can install an OS image from a USB drive
       <ph name="LIST_ITEM">&lt;li&gt;</ph>Set both the dev and the system root login password to a custom value so you can manually SSH into the device
     <ph name="END_LIST">&lt;/ul&gt;</ph>
     <ph name="BR">&lt;br&gt;</ph>
     Once enabled, most of the debugging features will remain enabled even after performing a powerwash or wiping the data on an enterprise managed device.  To fully disable all debugging features, complete the Chrome OS recovery process (https://support.google.com/chromebook/answer/1080595).
     <ph name="BR">&lt;br&gt;</ph>
     <ph name="BR">&lt;br&gt;</ph>
     For more information about the debugging features see:<ph name="BR">&lt;br&gt;</ph>
     http://www.chromium.org/chromium-os/how-tos-and-troubleshooting/debugging-features
+    <ph name="BR">&lt;br&gt;</ph>
+    <ph name="BR">&lt;br&gt;</ph>
+    <ph name="BEGIN_BOLD">&lt;b&gt;</ph>Note:<ph name="END_BOLD">&lt;/b&gt;</ph>  The system will reboot during the process.
   </message>
 
   <message name="IDS_RESET_SCREEN_WARNING_MSG" desc="Warning text shown on reset screen above the exclamation icon.">
     Reset this <ph name="IDS_SHORT_PRODUCT_NAME">$1<ex>Chrome</ex></ph> device
   </message>
   <message name="IDS_RESET_SCREEN_WARNING_POWERWASH_MSG" desc="Warning text shown on reset screen below the exclamation icon.">
     Powerwash to reset your <ph name="IDS_SHORT_PRODUCT_NAME">$1<ex>Chrome</ex></ph> device to be just like new.
   </message>
   <message name="IDS_RESET_SCREEN_WARNING_POWERWASH_AND_ROLLBACK_MSG" desc="Warning text shown on reset screen below the exclamation icon.">
     Powerwash your <ph name="IDS_SHORT_PRODUCT_NAME">$1<ex>Chrome</ex></ph> device and return to the previous version.
@@ skipping 3135 matching lines @@
   <message name="IDS_SET_TIME_BUTTON_CLOSE" desc="Text for the button to close the window.">
     Done
   </message>
   <message name="IDS_SET_TIME_DATE_LABEL" desc="Label for the date input element.">
     System date
   </message>
   <message name="IDS_SET_TIME_TIME_LABEL" desc="Label for the time input element.">
     System time
   </message>
 </grit-part>