Bug 1569877 - Consider textarea as a replaced element; r=miker

Differential Revision: https://phabricator.services.mozilla.com/D39866

--HG--
extra : moz-landing-system : lando

devtools/server/actors/utils/inactive-property-helper.js

@@ -486,6 +486,7 @@ class InactivePropertyHelper {
         // avoids extra complexity that will likely not be necessary in most cases.
         "select",
         "svg",
+        "textarea",
         "video",
       ])
     ) {

devtools/server/tests/mochitest/inactive-property-helper/max-min-width-height.js

@@ -110,6 +110,13 @@ export default [
     rules: ["select { display: inline; width: 500px; }"],
     isActive: true,
   },
+  {
+    info: "width is active on a textarea element",
+    property: "width",
+    tagName: "textarea",
+    rules: ["textarea { width: 500px; }"],
+    isActive: true,
+  },
   {
     info: "min-width is active on a replaced inline element",
     property: "min-width",
@@ -229,6 +236,13 @@ export default [
     rules: ["select { display: inline; height: 500px; }"],
     isActive: true,
   },
+  {
+    info: "height is active on a textarea element",
+    property: "height",
+    tagName: "textarea",
+    rules: ["textarea { height: 500px; }"],
+    isActive: true,
+  },
   {
     info: "min-height is active on a replaced inline element",
     property: "min-height",