Backed out changeset 2566c7e54dcf (bug 993162) for suspecting this caused dt tools bustage on a CLOSED TREE

browser/app/profile/firefox.js

@@ -1283,7 +1283,7 @@ pref("devtools.eyedropper.zoom", 6);
 // - keymap: which keymap to use (can be 'default', 'emacs' or 'vim')
 // - autoclosebrackets: whether to permit automatic bracket/quote closing.
 // - detectindentation: whether to detect the indentation from the file
-pref("devtools.editor.tabsize", 2);
+pref("devtools.editor.tabsize", 4);
 pref("devtools.editor.expandtab", true);
 pref("devtools.editor.keymap", "default");
 pref("devtools.editor.autoclosebrackets", true);

browser/devtools/sourceeditor/test/browser_detectindent.js

@@ -62,26 +62,26 @@ function test() {
   waitForExplicitFinish();
 
   setup((ed, win) => {
-    is(ed.getOption("indentUnit"), 2,
-       "2 spaces before code added");
+    is(ed.getOption("indentUnit"), 4,
+       "4 spaces before code added");
     is(ed.getOption("indentWithTabs"), false,
        "spaces is default");
 
-    ed.setText(FOUR_SPACES_CODE);
-    is(ed.getOption("indentUnit"), 4,
-       "4 spaces detected in 4 space code");
-    is(ed.getOption("indentWithTabs"), false,
-       "spaces detected in 4 space code");
-
     ed.setText(TWO_SPACES_CODE);
     is(ed.getOption("indentUnit"), 2,
        "2 spaces detected in 2 space code");
     is(ed.getOption("indentWithTabs"), false,
        "spaces detected in 2 space code");
 
+    ed.setText(FOUR_SPACES_CODE);
+    is(ed.getOption("indentUnit"), 4,
+       "4 spaces detected in 4 space code");
+    is(ed.getOption("indentWithTabs"), false,
+       "spaces detected in 4 space code");
+
     ed.setText(TABS_CODE);
-    is(ed.getOption("indentUnit"), 2,
-       "2 space indentation unit");
+    is(ed.getOption("indentUnit"), 4,
+       "4 space indentation unit");
     is(ed.getOption("indentWithTabs"), true,
        "tabs detected in majority tabs code");