Bug 1444591 - Reenable some tests in the Windows coverage build that started passing because of a Clang update. r=jmaher

--HG--
extra : rebase_source : 5acb0d074c244211590abd9cc83701adb93f5ef0

dom/browser-element/mochitest/chrome.ini

@@ -36,7 +36,6 @@ support-files =
 [test_browserElement_inproc_DOMRequestError.html]
 [test_browserElement_inproc_ExecuteScript.html]
 [test_browserElement_inproc_Find.html]
-fail-if = (os == 'win' && ccov) # Bug 1423667
 [test_browserElement_inproc_GetContentDimensions.html]
 [test_browserElement_inproc_GetScreenshot.html]
 [test_browserElement_inproc_GetScreenshotDppx.html]

toolkit/content/tests/chrome/chrome.ini

@@ -84,7 +84,6 @@ skip-if = os == 'linux' # Bug 1264604
 [test_bug437844.xul]
 [test_bug451540.xul]
 support-files = bug451540_window.xul
-fail-if = (os == 'win' && ccov) # Bug 1423667
 [test_bug457632.xul]
 [test_bug460942.xul]
 [test_bug471776.xul]
@@ -105,7 +104,6 @@ skip-if = toolkit == "cocoa"
 [test_deck.xul]
 [test_dialogfocus.xul]
 [test_findbar.xul]
-fail-if = (os == 'win' && ccov) # Bug 1423667
 subsuite = clipboard
 [test_findbar_entireword.xul]
 [test_findbar_events.xul]