Remove implicit update when adding a listener in passwords private API.

chrome/common/extensions/api/passwords_private.idl

Index: chrome/common/extensions/api/passwords_private.idl
diff --git a/chrome/common/extensions/api/passwords_private.idl b/chrome/common/extensions/api/passwords_private.idl
index ce993227f4afc3d8dc1e204b0611bf919dac40a7..9eac0a1deb09eb1d5971205f838eb6c844bc1ab7 100644
--- a/chrome/common/extensions/api/passwords_private.idl
+++ b/chrome/common/extensions/api/passwords_private.idl
@@ -76,15 +76,13 @@ namespace passwordsPrivate {
 
   interface Events {
     // Fired when the saved passwords list has changed, meaning that an entry
-    // has been added or removed. Note that this event fires as soon as a
-    //  listener is added.
+    // has been added or removed.
     //
     // |entries|: The updated list of password entries.
     static void onSavedPasswordsListChanged(PasswordUiEntry[] entries);
 
     // Fired when the password exceptions list has changed, meaning that an
-    // entry has been added or removed. Note that this event fires as soon as a
-    // listener is added.
+    // entry has been added or removed.
     //
     // |exceptions|: The updated list of password exceptions.
     static void onPasswordExceptionsListChanged(DOMString[] exceptions);