Differential Revision: https://phabricator.services.mozilla.com/D48986

--HG--
rename : browser/base/content/test/chrome/test_aboutCrashed.xul => browser/base/content/test/chrome/test_aboutCrashed.xhtml
rename : browser/base/content/test/chrome/test_aboutRestartRequired.xul => browser/base/content/test/chrome/test_aboutRestartRequired.xhtml
rename : browser/base/content/test/contextMenu/subtst_contextmenu_xul.xul => browser/base/content/test/contextMenu/subtst_contextmenu_xul.xhtml
rename : browser/base/content/test/general/browser_tab_dragdrop2_frame1.xul => browser/base/content/test/general/browser_tab_dragdrop2_frame1.xhtml
rename : browser/components/places/tests/chrome/test_0_bug510634.xul => browser/components/places/tests/chrome/test_0_bug510634.xhtml
rename : browser/components/places/tests/chrome/test_bug1163447_selectItems_through_shortcut.xul => browser/components/places/tests/chrome/test_bug1163447_selectItems_through_shortcut.xhtml
rename : browser/components/places/tests/chrome/test_bug549192.xul => browser/components/places/tests/chrome/test_bug549192.xhtml
rename : browser/components/places/tests/chrome/test_bug549491.xul => browser/components/places/tests/chrome/test_bug549491.xhtml
rename : browser/components/places/tests/chrome/test_selectItems_on_nested_tree.xul => browser/components/places/tests/chrome/test_selectItems_on_nested_tree.xhtml
rename : browser/components/places/tests/chrome/test_treeview_date.xul => browser/components/places/tests/chrome/test_treeview_date.xhtml
rename : browser/components/preferences/in-content/tests/browser_bug1184989_prevent_scrolling_when_preferences_flipped.xul => browser/components/preferences/in-content/tests/browser_bug1184989_prevent_scrolling_when_preferences_flipped.xhtml
rename : browser/components/preferences/in-content/tests/subdialog.xul => browser/components/preferences/in-content/tests/subdialog.xhtml
rename : browser/components/preferences/in-content/tests/subdialog2.xul => browser/components/preferences/in-content/tests/subdialog2.xhtml
rename : browser/extensions/formautofill/test/browser/focus-leak/doc_iframe_typecontent_input_focus.xul => browser/extensions/formautofill/test/browser/focus-leak/doc_iframe_typecontent_input_focus.xhtml
extra : source : 9de4958b65f183a452937f1e7e6b526df36e02f1