Chrome Cleanup: Add/modify strings for listing extensions.

- Add a string to list extensions under items to be removed.
- Modify confirmation message to clarify to users that their extensions
  were disabled because of the settings reset.

Bug: 853339
Change-Id: Ie57d4434ab5aa89f287038a1d45e0840678991aa
Reviewed-on: https://chromium-review.googlesource.com/1103220Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Commit-Queue: Nick Burris <nburris@google.com>
Cr-Commit-Position: refs/heads/master@{#568491}

chrome/app/settings_strings.grdp

@@ -4163,6 +4163,9 @@
     <message name="IDS_SETTINGS_RESET_CLEANUP_DETAILS_EXPLANATION" desc="Text that appears below the list of files, programs, and registry entries to be removed by Chrome as part of a cleanup process. 'privacy white paper' is a guide to Chrome's privacy policy and practices. In 'unwanted software protection,' the word 'unwanted' modifies 'software,' i.e. 'protection from unwanted software'.">
       Items not listed here will also be removed, if needed. Learn more about &lt;a href=&quot;<ph name="URL">$1<ex>https://www.google.com/chrome/browser/privacy/whitepaper.html#unwantedsoftware</ex></ph>&quot;&gt;unwanted software protection&lt;/a&gt; in the Chrome privacy white paper.
     </message>
+    <message name="IDS_SETTINGS_RESET_CLEANUP_DETAILS_EXTENSIONS" desc="Introduces a bullet list containing the names of extensions to be removed by Chrome.">
+      Extensions:
+    </message>
     <message name="IDS_SETTINGS_RESET_CLEANUP_DETAILS_FILES_AND_PROGRAMS" desc="Introduces a bullet list containing the names of files and programs to be removed by Chrome.">
       Files and programs:
     </message>
@@ -4213,7 +4216,7 @@
       Restart computer
     </message>
     <message name="IDS_SETTINGS_RESET_CLEANUP_TITLE_DONE" desc="Message confirming that Chrome has removed harmful software. Exclamation point is nice in EN-US but is optional in your language; please use or omit as appropriate. The UI will also display a checkmark icon to indicate the operation is done. ">
-      Done! Harmful software removed.
+      Done! Harmful software removed. To turn extensions back on, visit &lt;a href=&quot;chrome://extensions&quot;&gt;Extensions.&lt;/a&gt;
     </message>
     <message name="IDS_SETTINGS_RESET_CLEANUP_TITLE_ERROR_CANT_REMOVE" desc="An error message, appearing on the Chrome Cleanup web page, that Chrome tried to clean up unwanted software, as requested by the user, but was unsuccessful. Omits subject, i.e. Chrome can't remove harmful software.">
       Cleanup failed