Bug 1806501 - Start the JS Oracle process early. r=smaug

Differential Revision: https://phabricator.services.mozilla.com/D167230

dom/base/ChromeUtils.cpp

@@ -6,6 +6,7 @@
 
 #include "ChromeUtils.h"
 
+#include "JSOracleParent.h"
 #include "js/CharacterEncoding.h"
 #include "js/Object.h"              // JS::GetClass
 #include "js/PropertyAndElement.h"  // JS_DefineProperty, JS_DefinePropertyById, JS_Enumerate, JS_GetProperty, JS_GetPropertyById, JS_SetProperty, JS_SetPropertyById, JS::IdVector
@@ -1762,6 +1763,12 @@ bool ChromeUtils::IsDarkBackground(GlobalObject&, Element& aElement) {
 
 double ChromeUtils::DateNow(GlobalObject&) { return JS_Now() / 1000.0; }
 
+/* static */
+void ChromeUtils::EnsureJSOracleStarted(GlobalObject&) {
+  JSOracleParent::WithJSOracle(
+      [](JSOracleParent* aParent) { MOZ_DIAGNOSTIC_ASSERT(aParent); });
+}
+
 /* static */
 unsigned ChromeUtils::AliveUtilityProcesses(const GlobalObject&) {
   const auto& utilityProcessManager =