Bug 1787947 - pref on CSS named pages in Nightly r=dholbert

Also standardize having named pages enabled for css-page WPT

Differential Revision: https://phabricator.services.mozilla.com/D163638

devtools/shared/css/generated/properties-db.js

@@ -9667,6 +9667,21 @@ exports.CSS_PROPERTIES = {
       "unset"
     ]
   },
+  "page": {
+    "isInherited": false,
+    "subproperties": [
+      "page"
+    ],
+    "supports": [],
+    "values": [
+      "auto",
+      "inherit",
+      "initial",
+      "revert",
+      "revert-layer",
+      "unset"
+    ]
+  },
   "page-break-after": {
     "isInherited": false,
     "subproperties": [

modules/libpref/init/StaticPrefList.yaml

@@ -8520,7 +8520,7 @@
 # Enables support for the named pages
 - name: layout.css.named-pages.enabled
   type: RelaxedAtomicBool
-  value: false
+  value: @IS_NIGHTLY_BUILD@
   mirror: always
   rust: true
 

testing/web-platform/meta/css/css-page/__dir__.ini

@@ -0,0 +1 @@
+prefs: [layout.css.named-pages.enabled:true]

testing/web-platform/meta/css/css-page/inheritance.html.ini

@@ -1,7 +0,0 @@
-[inheritance.html]
-  [Property page has initial value auto]
-    expected: FAIL
-
-  [Property page does not inherit]
-    expected: FAIL
-

testing/web-platform/meta/css/css-page/page-orientation.tentative.html.ini

@@ -1,4 +1,16 @@
 [page-orientation.tentative.html]
   [contents for selector ['undefined'\]]
     expected: FAIL
+  [contents for selector [''\]]
+    expected: FAIL
+  [contents for selector ['named1'\]]
+    expected: FAIL
+  [contents for selector ['named3'\]]
+    expected: FAIL
+  [contents for selector ['named4'\]]
+    expected: FAIL
+  [contents for selector ['named5'\]]
+    expected: FAIL
+  [contents for selector ['named6'\]]
+    expected: FAIL
 

testing/web-platform/meta/css/css-page/page-rule-declarations-000.html.ini

@@ -1,5 +1,4 @@
 [page-rule-declarations-000.html]
-  prefs: [layout.css.named-pages.enabled:true]
   [unexpected contents for selector ['page_jis_size_orientation'\]]
     expected: FAIL
 

testing/web-platform/meta/css/css-page/page-rule-declarations-001.html.ini

@@ -1,6 +1,4 @@
 [page-rule-declarations-001.html]
-  prefs: [layout.css.named-pages.enabled:true]
-
   [CSS Paged Media: parsing @page declarations inside @media]
     expected: FAIL
 

testing/web-platform/meta/css/css-page/page-rule-declarations-002.html.ini

@@ -1,4 +1,3 @@
 [page-rule-declarations-002.html]
-  prefs: [layout.css.named-pages.enabled:true]
   expected:
     if (os == "android") and fission: [OK, TIMEOUT]

testing/web-platform/meta/css/css-page/page-rule-declarations-003.html.ini

@@ -1,4 +1,3 @@
 [page-rule-declarations-003.html]
-  prefs: [layout.css.named-pages.enabled:true]
   expected:
     if (os == "android") and fission: [TIMEOUT, OK]

testing/web-platform/meta/css/css-page/page-rule-declarations-004.html.ini

@@ -1,5 +1,4 @@
 [page-rule-declarations-004.html]
-  prefs: [layout.css.named-pages.enabled:true]
   expected:
     if (os == "android") and fission: [OK, TIMEOUT]
   [rule with invalid selector ['--a'\]]