Bug 1474940 - Add a crashtest for very large blurred rects. r=Bas

--HG--
extra : source : 16e2aaf4043cc315126c18fbb9fc14a1bb130276

gfx/tests/crashtests/1464243.html

@@ -0,0 +1,13 @@
+<style>
+:not(basefont) {
+  box-shadow: 0 0 8px -moz-win-mediatext;
+  transform: scaley(56);
+}
+.cl {
+  padding-top: 16vw;
+}
+</style>
+<menu>
+<menu class="cl"></menu>
+<menu style="-webkit-perspective: 1px">
+<menu>

gfx/tests/crashtests/crashtests.list

@@ -164,5 +164,6 @@ load 1325159-1.html
 load 1331683.html
 skip-if(Android) pref(dom.disable_open_during_load,false) load 1343666.html
 load 1408078-1.html
+load 1464243.html
 load 1467847-1.html