Show "Link" item when applicable and show correct toast for deletion.

b/25165853 is about the "Link" item. And this CL also does the following
things:

1. show toast for deleting 1/multiple contacts from PeopleActivity.
2. show toast when deletion happens in QuickContact and contact editor.

Bug: 25165853
Change-Id: Ia8ecb6b4118ecff3bc3ba50ac98ffadf337db52c
diff --git a/src/com/android/contacts/ContactSaveService.java b/src/com/android/contacts/ContactSaveService.java
index 1989606..fd117a4 100755
--- a/src/com/android/contacts/ContactSaveService.java
+++ b/src/com/android/contacts/ContactSaveService.java
@@ -1012,7 +1012,15 @@
             final Uri contactUri = ContentUris.withAppendedId(Contacts.CONTENT_URI, contactId);
             getContentResolver().delete(contactUri, null, null);
         }
-        showToast(R.string.contacts_deleted_toast);
+        final String deleteToastMessage = getResources().getQuantityString(R.plurals
+                .contacts_deleted_toast, contactIds.length);
+        mMainHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                Toast.makeText(ContactSaveService.this, deleteToastMessage, Toast.LENGTH_LONG)
+                        .show();
+            }
+        });
     }
 
     /**