[MD Bookmarks] Add toasts.

chrome/app/bookmarks_strings.grdp

Index: chrome/app/bookmarks_strings.grdp
diff --git a/chrome/app/bookmarks_strings.grdp b/chrome/app/bookmarks_strings.grdp
index 2a18fcbd19f5d2c8467387eec759effc127c6bfe..6a023c9a754c4872f02bd974aba1331cb73bd26e 100644
--- a/chrome/app/bookmarks_strings.grdp
+++ b/chrome/app/bookmarks_strings.grdp
@@ -416,6 +416,18 @@
   <message name="IDS_MD_BOOKMARK_MANAGER_TITLE" desc="Title of the bookmark manager window.">
     Bookmarks
   </message>
+  <message name="IDS_MD_BOOKMARK_MANAGER_TOAST_FOLDER_SORTED" desc="Label displayed in toast when a folder's children are sorted.">
+    Folder sorted
+  </message>
+  <message name="IDS_MD_BOOKMARK_MANAGER_TOAST_ITEM_DELETED" desc="Label displayed in toast when an item is deleted.">
+    <ph name="DELETED_ITEM_NAME">$1</ph> has been deleted
+  </message>
+  <message name="IDS_MD_BOOKMARK_MANAGER_TOAST_ITEMS_DELETED" desc="Label displayed in toast when several items are deleted.">
+    <ph name="NUMBER_OF_ITEMS_DELETED">$1</ph> bookmarks deleted

[tsergeant, 2017/05/26 05:19:24]

Do we need to worry about localization more here? It works for English plural
rules, but that might not work for every language.

[calamity, 2017/05/31 08:10:41]

Wrote a plural string handler. Will remove the single string in a follow up.

+  </message>
+  <message name="IDS_MD_BOOKMARK_MANAGER_TOAST_URL_COPIED" desc="Label displayed in toast when a URL is copied.">
+    URL copied
+  </message>
   <!-- End of material design Bookmarks Manager strings. -->
 
   <!-- Begin of Bookmarks Menu (in the Main Menu) strings. -->