[MD settings] inform users that the spelling service sends data to google

chrome/app/settings_strings.grdp

Index: chrome/app/settings_strings.grdp
diff --git a/chrome/app/settings_strings.grdp b/chrome/app/settings_strings.grdp
index 984e59657de7516a1f21ed124681cfc984b61a04..ef1d54248150370fa90a723a88a19712a3393483 100644
--- a/chrome/app/settings_strings.grdp
+++ b/chrome/app/settings_strings.grdp
@@ -872,7 +872,7 @@
     </message>
     <message name="IDS_SETTINGS_PRINTING_CUPS_PRINTER_ADDED_PRINTER_TRY_AGAIN_MESSAGE" desc="The try-again message shown when a new printer is not set up successfully.">
       Try again
-    </message>  
+    </message>
   </if>
   <message name="IDS_SETTINGS_PRINTING_CLOUD_PRINTERS" desc="In Printing Settings, the title of the google cloud printers setting section.">
     Google Cloud Print
@@ -1466,6 +1466,9 @@
   <message name="IDS_SETTINGS_SPELLING_PREF" desc="The documentation string of the 'Use Spelling' preference">
     Use a web service to help resolve spelling errors
   </message>
+  <message name="IDS_SETTINGS_SPELLING_DESCRIPTION" desc="Description of using a web serviced to help resolve spelling errors. It is important to convey that what the user types will be sent to Google.">
+    Smarter spell-checking by sending what you type in the browser to Google
+  </message>
   <message name="IDS_SETTINGS_ENABLE_LOGGING" desc="The label of the checkbox to enable/disable crash and user metrics logging">
     Automatically send usage statistics and crash reports to Google
   </message>