DO NOT MERGE Control access to inherited methods of jsinterface objects

Bug: 7073422

Create the plumbing to use an annotation to allow access to
inherited methods of jsinterface objects. The default webview
behavior has not changed yet. However internally an a flag is
introduced to restrict javascript access to methods that have an annotation.

Clean cherry pick of 94740e6c

Provided @JavascriptInterface to methods that are accessible from
js.

Clean cherry pick of b743a23f

Add a glue logic to require use of annotations in injected accessibility
 objects.

Change-Id: I4135bd6787b2084177215302cd2c72afed090dc0