Add a checkbox on stop-sync dialog to allow user to choose whether to delete

chrome/browser/resources/sync_setup_overlay.js

Index: chrome/browser/resources/sync_setup_overlay.js
diff --git a/chrome/browser/resources/sync_setup_overlay.js b/chrome/browser/resources/sync_setup_overlay.js
index 909aa0a6d41c9f5106170f865957a98bfa858813..c0d9a4c386909cdcc9f36f728613f3767e147c46 100644
--- a/chrome/browser/resources/sync_setup_overlay.js
+++ b/chrome/browser/resources/sync_setup_overlay.js
@@ -83,7 +83,8 @@ cr.define('options', function() {
         self.closeOverlay_();
       };
       $('stop-syncing-ok').onclick = function() {
-        chrome.send('SyncSetupStopSyncing');
+        var deleteProfile = $('delete-profile').checked;
+        chrome.send('SyncSetupStopSyncing', [deleteProfile]);
         self.closeOverlay_();
       };
     },