Bug 1321865 - Enable IntersectionObserver Tests. r=smaug

--HG--
extra : rebase_source : 677470bff8e880d5b732fb6f43a2374243f3f0e6
extra : histedit_source : 4672008861ada5dcc4602b1910017517c6495046

dom/base/test/mochitest.ini

@@ -656,7 +656,7 @@ skip-if = (toolkit == 'android') # Android: Bug 775227
 [test_innersize_scrollport.html]
 [test_integer_attr_with_leading_zero.html]
 [test_intersectionobservers.html]
-skip-if = true # Track Bug 1320704
+skip-if = (os == "android") # Timing issues
 [test_link_prefetch.html]
 skip-if = !e10s # Track Bug 1281415
 [test_link_stylesheet.html]

dom/tests/mochitest/general/test_interfaces.html

@@ -621,9 +621,9 @@ var interfaceNamesInGlobalScope =
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "InstallTrigger",
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "IntersectionObserver", disabled: true},
+    "IntersectionObserver",
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "IntersectionObserverEntry", disabled: true},
+    "IntersectionObserverEntry",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "KeyEvent",
 // IMPORTANT: Do not change this list without review from a DOM peer!