Task/Issue URL: https://app.asana.com/1/137249556945/project/72649045549333/task/1211578851788392?focus=true

Description

• FF updating script on protections changed as part of native crashes investigation after adding addDocumentStartJavaScript

Steps to test this PR

Pre-requisites

• Apply this patch
• Do a clean install of the app
• Open Feature flags inventory
• Set updateScriptOnPageFinished to false to reduce the amount of logs
• Filter logcat by "Cris"

FF enabled

• Open Feature flags inventory
• Set updateScriptOnProtectionsChanged to true
• Load a page
• Change protection status from context menu
• Check there's a log for addDocumentJavaScript every time you toggle protections
• Open privacy dashboard and toggle privacy protections from there
• Navigate back to the WebView
• Check there's a log for addDocumentJavaScript every time you toggle protections

FF enabled

• Open Feature flags inventory
• Set updateScriptOnProtectionsChanged to false
• Load a page
• Change protection status from context menu
• Check there's no log for addDocumentJavaScript every time you toggle protections
• Open privacy dashboard and toggle privacy protections from there
• Navigate back to the WebView
• Check there's no log for addDocumentJavaScript every time you toggle protections

UI changes

n/a