Bug 1593170. Annotate new expected asserts in docshell/base/crashtests/1257730-1.html as a result of Fission work in reftest harness. r=mattwoodrow

The asserts are

NS_ASSERTION(mDidInitialize, "should have done initial reflow by now");

in

layout/base/PresShell.cpp

in a couple of different places.

The stacks are slightly different from the existing case in bug 566159. In bug 566159 the stacks are as a result of asking to scroll. In this case the stacks are from an autofocus form element. The element is actually in our about:neterror page when the test tries to navigate to "href". The reason they show up now is that the Fission work on the reftest harness, in general, makes things more async. So in this test we previously tore down the page and moved on to the next test before being able to hit these assertions.

Differential Revision: https://phabricator.services.mozilla.com/D51348

--HG--
extra : moz-landing-system : lando

docshell/base/crashtests/crashtests.list

@@ -12,6 +12,6 @@ load 514779-1.xhtml
 load 614499-1.html
 load 678872-1.html
 skip-if(Android) pref(dom.disable_open_during_load,false) load 914521.html # Android bug 1584562
-pref(browser.send_pings,true) load 1257730-1.html
+pref(browser.send_pings,true) asserts(0-2) load 1257730-1.html # bug 566159
 load 1331295.html
 load 1341657.html