* Add top sites related strings

* Change default top sites to Baidu & JD in China build

For #16302 - Use larger heap size when running unit tests and fork new process after every 80 test classes. (#16526)

This reverts commit dbdb68ac.

A link for the "share_image" data review is to be added after review.

ImageViews are normally not clipped but extend to cover the entire width and
height set.
CardViews as a parent can help with that but on lower APIS they still need a
shapeAppearance which is a property already in the added style.

To get the index of the current selected browser tab when using reverse layout
we should also account for items placed below of the browser tabs.
The patch here unifies the logic already used for some calls but not all.

* Enable webrender for all tests and run a subset without webrender.

* Run tests on PR.

* Change task labels for webrender-enabled tests.

* Move transform logic to after the main transform.

* Reformat group symbol.

* Check if extra field is empty.

* Try a different method for treeherder info.

* Fix up assignment issue.

* Reformat symbol field instead of groupSymbol.

* Add new task group to config.

* Change the platform name for webrender tasks.

* Undo testing changes.

* Undo platform naming changes.

on WifiConnectionMonitor