Bug 1774641 - Expose isInProcess and windowGlobalChild on the WindowContext webidl r=nika

Differential Revision: https://phabricator.services.mozilla.com/D149839

dom/chrome-webidl/WindowGlobalActors.webidl

@@ -14,12 +14,16 @@ interface nsIDOMProcessParent;
 interface WindowContext {
   readonly attribute BrowsingContext? browsingContext;
 
+  readonly attribute WindowGlobalChild? windowGlobalChild; // in-process only
+
   readonly attribute unsigned long long innerWindowId;
 
   readonly attribute WindowContext? parentWindowContext;
 
   readonly attribute WindowContext topWindowContext;
 
+  readonly attribute boolean isInProcess;
+
   // True if this WindowContext is currently frozen in the BFCache.
   readonly attribute boolean isInBFCache;
 
@@ -54,7 +58,6 @@ enum PermitUnloadAction {
 [Exposed=Window, ChromeOnly]
 interface WindowGlobalParent : WindowContext {
   readonly attribute boolean isClosed;
-  readonly attribute boolean isInProcess;
 
   readonly attribute boolean isCurrentGlobal;