Support actionProviderClass attribute for menus [DO NOT MERGE]

The change adds support for view cookies for actionProviderClasses (for
example, ShareActionProvider) in the action bar menus.

This also provides a more robust search for the overflowMenuButton.

Change-Id: I316c8b9a69e2e337b41ba0fe4e61af9fe850f750
(cherry picked from commit 7f56beb8)