* Simplify how parent/child are set
* Remove unused public frameId property
* Change use of getFrame
* Simplify parent access
* Use property for the container
* Remove isProxy
* Public function API parity
* Public property API parity
* Change getOrCreatePopup arguments to be an object
* Add ownerFrameId to popup and DisplayFloat
* Refactor DisplayFloat host action invocation
* Use CrossFrameAPI instead of window.postMessage
* Update popup closing functionality on the search page
* Create member functions for ignoreElements and ignorePoint
* Create addFullscreenChangeEventListener utility
* Move popup creation management into Frontend
* Move getUrl implementation
* Remove old setup
* Remove try/catch block
* Error wrap
* Add prepare call to TextScanner
* Update depth when popup changes
* Refactor how Frontend gets PopupFactory and frameId
* Update popup preview to work
* Update popup preview frame to use the frontend's popup
* Update how nested popups are set up
* Error wrap
* Update how popups are set up on the search page
* Error wrap
* Error unwrap
* Add missing prepare
* Remove use of frontendInitializationData
* Catch and log errors
* Use new CrossFrameAPI for popup proxy communication
* Remove use of old cross-frame communication classes
* Remove use of old cross-frame communication files
* Make the crossFrame object a member of the api object
* Add default
* Convert function to non-static
* Remove static for private functions
* Replace .call
* Move functions with side effects into a synchronous prepare function
* Rename variables with "container" to "frame" in _initializeFrame
* Rename variables with "container" to "frame"
* Rename getContainer to getFrame
* Rename getContainerRect to getFrameRect
* Organize and simplify
* Fix incorrect change of "popup" => "this"
* Move initial _updateVisibility into prepare()
* Rename PopupProxyHost to PopupFactory
* Update FrontendApiReceiver to support non-async handlers
* Make some functions non-async
* Make setCustomCss non-async
* Make setContentScale non-async
* Remove static
* Rename variables
* Pass frameId into PopupFactory's constructor
* Change FrontendApiReceiver source from popup-proxy-host to popup-factor
* Rename _invokeHostApi to _invoke
* Rename PopupProxy.getHostUrl to getUrl
