Return inherited view permissions in remote API calls

The following methods in the remote API return the permissions specific to the page:

getContentPermissionSets
getContentPermissionSet
getPagePermissions

However, since view permissions are inheritable, this is an incomplete view. Currently, to assemble the permissions, a developer writing code against our API would have to work their way up the tree and overlay any view permissions encountered along the way.

It would be more useful to be able to get the effective permissions on a page, either through one of the existing methods or a new method.