MD Settings: Hook up import data dialog.

chrome/app/settings_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Settings-specific strings (included from generated_resources.grd). -->
 <grit-part>
   <!-- About Page -->
   <if expr="chromeos">
     <message name="IDS_SETTINGS_ABOUT_PAGE_DETAILED_BUILD_INFO" desc="Label describing the section that shows detailed information about the current Chrome build.">
       Detailed build information
     </message>
     <message name="IDS_SETTINGS_ABOUT_PAGE_ARC_VERSION" desc="Label for ARC version">
       ARC Version
@@ skipping 2165 matching lines @@
     <message name="IDS_SETTINGS_IMPORT_PASSWORDS_CHECKBOX" desc="Checkbox for importing saved passwords">
       Saved passwords
     </message>
     <message name="IDS_SETTINGS_IMPORT_SEARCH_ENGINES_CHECKBOX" desc="Checkbox for importing search engines">
       Search engines
     </message>
     <message name="IDS_SETTINGS_IMPORT_AUTOFILL_FORM_DATA_CHECKBOX" desc="Checkbox for importing form data for autofill">
       Autofill form data
     </message>
 
-    <message name="IDS_SETTINGS_IMPORT_SUCCEEDED" desc="Status text to notify the user that the import succeeded">
-      Success!
-    </message>
     <message name="IDS_SETTINGS_IMPORT_CHOOSE_FILE" desc="Text for the Choose File on dialog">
       Choose File
     </message>
     <message name="IDS_SETTINGS_IMPORT_COMMIT" desc="Text for OK button on dialog">
       Import
     </message>
-
+    <message name="IDS_SETTINGS_IMPORT_READY" desc="Message displayed after settings and bookmarks have been imported">

[tommycli, 2016/11/16 17:23:52]

nit: even if the text says "ready", it seems more obvious to make the IDS string
say IDS_SETTINGS_IMPORT_SUCCESS

[dpapad, 2016/11/16 21:33:01]

Done.

+      Your bookmarks and settings are ready.
+    </message>
     <message name="IDS_SETTINGS_IMPORT_NO_PROFILE_FOUND" desc="Message displayed when we do not find any supported browser to import from.">
       No supported browser found
     </message>
   </if>
 
   <!-- Users Page -->
   <message name="IDS_SETTINGS_USERS" desc="Name of the settings page which manages users on the device.">
     Manage other users
   </message>
   <if expr="chromeos">
@@ skipping 356 matching lines @@
       System
     </message>
     <message name="IDS_SETTINGS_SYSTEM_HARDWARE_ACCELERATION_LABEL" desc="Label for the checkbox that forces Chrome to render via hardware acceleration (GPU) when available.">
       Use hardware acceleration when available
     </message>
     <message name="IDS_SETTINGS_SYSTEM_PROXY_SETTINGS_BUTTON" desc="Text for the button that changes a user's network proxy settings.">
       Change proxy settings
     </message>
   </if>
 </grit-part>