Bug 1659625: Expose DOMLocalization interface to UA widgets. r=zbraniecki,smaug

This is needed in order for UA widgets to use Fluent.

Differential Revision: https://phabricator.services.mozilla.com/D87389

dom/chrome-webidl/moz.build

@@ -42,7 +42,6 @@ WEBIDL_FILES = [
     'DocumentL10n.webidl',
     'DOMCollectedFrames.webidl',
     'DominatorTree.webidl',
-    'DOMLocalization.webidl',
     'Flex.webidl',
     'Fluent.webidl',
     'FrameLoader.webidl',
@@ -54,7 +53,6 @@ WEBIDL_FILES = [
     'JSProcessActor.webidl',
     'JSWindowActor.webidl',
     'L10nOverlays.webidl',
-    'Localization.webidl',
     'MatchGlob.webidl',
     'MatchPattern.webidl',
     'MediaController.webidl',

dom/webidl/DOMLocalization.webidl

@@ -24,7 +24,7 @@
  *
  */
 
-[ChromeOnly, Exposed=Window]
+[Func="IsChromeOrUAWidget", Exposed=Window]
 interface DOMLocalization : Localization {
   /**
    * Constructor arguments:

dom/webidl/Localization.webidl

@@ -77,7 +77,7 @@ dictionary BundleGenerator {
  *    - formatMessages     - format multiple compound messages
  *
  */
-[ChromeOnly, Exposed=Window]
+[Func="IsChromeOrUAWidget", Exposed=Window]
 interface Localization {
   /**
    * Constructor arguments:

dom/webidl/moz.build

@@ -496,6 +496,7 @@ WEBIDL_FILES = [
     'DocumentType.webidl',
     'DOMException.webidl',
     'DOMImplementation.webidl',
+    'DOMLocalization.webidl',
     'DOMMatrix.webidl',
     'DOMParser.webidl',
     'DOMPoint.webidl',
@@ -665,6 +666,7 @@ WEBIDL_FILES = [
     'KeyIdsInitData.webidl',
     'LinkStyle.webidl',
     'LoadURIOptions.webidl',
+    'Localization.webidl',
     'Location.webidl',
     'MathMLElement.webidl',
     'MediaCapabilities.webidl',