Adds context menu for folders (edit/delete)

 Bug: 3214901
 Adds support for folder context menus to edit and delete folders.

Change-Id: I89cb2fa4b139ba3f59ec62b34154d5837c7f471b
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 7d27dec..e98d9d5 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -131,6 +131,10 @@
     <!-- Default name for a new folder and label for a button that allows the user to create a new folder
          in the add bookmark dialog -->
     <string name="new_folder">New folder</string>
+    <!-- Context menu item to edit a folder [CHAR LIMIT=50] -->
+    <string name="edit_folder">Edit folder</string>
+    <!-- Context menu item to delete a folder [CHAR LIMIT=50] -->
+    <string name="delete_folder">Delete folder</string>
     <!-- Label stating that the currently open folder has no subfolders
          in the add bookmark dialog [CHAR-LIMIT=none]-->
     <string name="no_subfolders">No subfolders</string>
@@ -230,6 +234,10 @@
     <string name="webarchive_saved">Web archive saved.</string>
     <!-- Toast informing the user that saving the page has failed. -->
     <string name="webarchive_failed">Failed to save web archive.</string>
+    <!-- The number of bookmarks in a folder [CHAR LIMT=50] -->
+    <string name="contextheader_folder_bookmarkcount"><xliff:g id="bookmark_count">%d</xliff:g> bookmarks</string>
+    <!-- No bookmarks in the folder [CHAR LIMIT=50] -->
+    <string name="contextheader_folder_empty">Empty folder</string>
     <!-- Context Menu item open the currently selected link in the current
             window.-->
     <string name="contextmenu_openlink">Open</string>