Test browser functionality with ESR 91

[llewelld]

Sailfish Browser provides a set of functionalities that go above and beyond just rendering of the webpage. All of these will need to be tested and working for ESR 91 to be usable. Here's a minimal set.

• [x] Video rendering and controls.
• [x] Audio output and controls.
• [x] Private browsing.
• [x] Search on page.
• [x] Share link.
• [x] Save web page as PDF.
• [x] Desktop/mobile view switching.
• [x] Bookmarks.
• [x] History.
• [x] Downloads (including setting save destination).
• [x] Configuration using about:config.
• [x] Home page functionality.
• [x] Search providers.
• [x] Close tabs on exit.
• [x] Do not track.
• [x] JavaScript enable/disable toggle.
• [x] Password storage.
• [x] Permissions: location, pop-ups, cookies, camera, microphone.
• [x] Clearing the browser data.
• [x] Automatic dark/light theme switching.
• [x] Everything on the browser test page.
• [x] WebRTC audio and video.

[llewelld]

Most of the tests have passed but a few are failing:

1. Video rendering and controls: total fail: fails on BBC iPlayer and Jolla's test page.
2. Audio output and controls: partial fail: fails on BBC Sounds but succeeds on Jolla's test page.
3. Password storage: total fail.
4. Automatic dark/light theme switching: partial fail: fixed dark/light theming works but automatic switching with the ambience fails.
5. Everything on the browser test page: fails: single select widget; external links; full screen; double-tap.

Although in some cases the functionality worked as expected there were also some concerning error messages even on some of the passing cases:

% Print to PDF
JavaScript error: resource://gre/actors/BrowserElementParent.jsm, line 24: TypeError: browser is null
% Exiting the browser
JavaScript error: file:///usr/lib64/mozembedlite/components/EmbedLiteChromeManager.js, line 170: TypeError: chromeListener is undefined
% Saving a downloaded file
JavaScript error: resource://gre/modules/pdfjs.js, line 29: NS_ERROR_NOT_AVAILABLE: 
% Login manager
JavaScript error: resource://gre/modules/LoginHelper.jsm, line 1734: TypeError: browser is null