Comment 0 for bug 1600176

[Impact]

This SRU groups 9 separate bug fixes that went into bug:webbrowser-app since xenial was released. Those were carefully picked because of their impact on desktop users of webbrowser-app and webapp-container (images for phones and tablets are built with the stable-phone-overlay PPA so they don’t require backports):

 - bug #1565055: support for google hangouts
 - bug #1573017: SAML detection logic broken in webapp container
 - bug #1572673: invalid variable access error in webapp container
 - bug #1466427: dynamic Ubuntu version in default UA string
 - bug #1576639: fine-tune the custom memory-pressure handler
 - bug #1581025: secure connection icon not showing
 - bug #1580290: only load the current tab when the session is restored
 - bug #1577806: browser and container open under the same instance
 - bug #1565063: dynamic Chromium version in default UA string

[Test Case]

Each individual bug report has details of how to reproduce the bug and how to verify it is fixed, along with additional unit/autopilot tests where applicable.

[Regression Potential]

General UX regressions should be caught by existing autopilot tests (both apps have quite an extensive test suite). The most intrusive change in this SRU is also the most critical one, it’s the fix for bug #1577806. As such, it has been particularly carefully tested.