Bug 1727844 - part 1: Stop enabling blink-compat white-space normalizer at running mochitests r=m_kato

It was enabled for working on implementing blink-compat white-space normalizer,
but currently nobody works on it actively.  Therefore, we should disable it
at running mochitests for detecting any regressions in the default settings.

Differential Revision: https://phabricator.services.mozilla.com/D123868

editor/libeditor/tests/chrome.ini

@@ -1,7 +1,5 @@
 [DEFAULT]
 skip-if = os == 'android'
-prefs =
-  editor.white_space_normalization.blink_compatible=true
 support-files = green.png
 
 [test_bug489202.xhtml]

editor/libeditor/tests/mochitest.ini

@@ -1,6 +1,5 @@
 [DEFAULT]
 prefs =
-  editor.white_space_normalization.blink_compatible=true
   apz.zoom-to-focused-input.enabled=false
 support-files =
   data/cfhtml-chromium.txt

editor/libeditor/tests/test_bug1094000.html

@@ -93,8 +93,13 @@ function runTests() {
   editor7.focus();
   synthesizeKey("KEY_ArrowRight");
   synthesizeKey("KEY_Backspace");
-  is(editor7.innerHTML, "<br>",
-     "an editor which had \"f\" in a <span> element should have only <br> element after Backspace keypress");
+  is(
+    editor7.innerHTML,
+    SpecialPowers.getBoolPref("editor.white_space_normalization.blink_compatible")
+      ? "<br>"
+      : "<span><br></span>",
+    "an editor which had \"f\" in a <span> element should have only <br> element after Backspace keypress"
+  );
   ok(Math.abs(editor7.getBoundingClientRect().height - editor1.getBoundingClientRect().height) <= 1,
      "an editor whose content was removed by Backspace key should have a place to put a caret");
 
@@ -102,9 +107,14 @@ function runTests() {
   synthesizeKey("KEY_ArrowLeft");
   synthesizeKey("KEY_Delete");
   todo_is(editor8.innerHTML, "<br>",
-     "an editor which had \"g\" in a <span> element should have only <br> element after Delete keypress");
-  todo_isnot(editor8.innerHTML, "<br><span></span>",
-     "an editor which had \"g\" in a <span> element should have only <br> element after Delete keypress");
+    "an editor which had \"g\" in a <span> element should have only <br> element after Delete keypress");
+  todo_isnot(
+    editor8.innerHTML,
+    SpecialPowers.getBoolPref("editor.white_space_normalization.blink_compatible")
+      ? "<br><span></span>"
+      : "<span><br></span>",
+    "an editor which had \"g\" in a <span> element should have only <br> element after Delete keypress"
+  );
   ok(Math.abs(editor8.getBoundingClientRect().height - editor1.getBoundingClientRect().height) <= 1,
      "an editor whose content was removed by Backspace key should have a place to put a caret");
 

editor/libeditor/tests/test_bug455992.html

@@ -53,7 +53,13 @@ function runTest() {
     sendKey("right");
     sendChar(" ");
     is(e.parentNode.childNodes[2].nodeValue, before, msg + " with id=" + e.id);
-    is(e.innerHTML, "X ", msg + " with id=" + e.id);
+    is(
+      e.innerHTML,
+      SpecialPowers.getBoolPref("editor.white_space_normalization.blink_compatible") || e.tagName == "SPAN"
+        ? "X "
+        : "X <br>",
+      msg + " with id=" + e.id
+    );
   }
 
   test_begin_bs(select("t1"));

editor/libeditor/tests/test_htmleditor_keyevent_handling.html

@@ -226,8 +226,17 @@ function runTests() {
     check(aDescription + "Tab",
           true, true, !aIsTabbable && !aIsReadonly);
     is(aElement.innerHTML,
-       aIsTabbable || aIsReadonly ? "a" :
-         aIsPlaintext ? "a\t" : "a    ",
+       (() => {
+         if (aIsTabbable || aIsReadonly) {
+           return "a";
+         }
+         if (aIsPlaintext) {
+           return "a\t";
+         }
+         return SpecialPowers.getBoolPref("editor.white_space_normalization.blink_compatible")
+           ? "a    "
+           : "a&nbsp;&nbsp;&nbsp; <br>";
+       })(),
        aDescription + "Tab");
     is(SpecialPowers.unwrap(fm.focusedElement), aElement,
        aDescription + "focus moved unexpectedly (Tab)");
@@ -597,7 +606,17 @@ function runTests() {
     sendString(" ");
     check(aDescription + "' '", true, true, !aIsReadonly);
     is(aElement.innerHTML,
-       aIsReadonly ? "" : aIsPlaintext ? "Mozilla " : "Mozilla&nbsp;",
+       (() => {
+         if (aIsReadonly) {
+           return "";
+         }
+         if (aIsPlaintext) {
+           return "Mozilla ";
+         }
+         return SpecialPowers.getBoolPref("editor.white_space_normalization.blink_compatible")
+           ? "Mozilla&nbsp;"
+           : "Mozilla <br>";
+       })(),
        aDescription + "typed \"Mozilla \"");
   }