Bug 1972486 - chore(webgpu)!: narrow dom.webgpu.workers.enabled to ….service-workers.enabled r=webgpu-reviewers,saschanaz,jimb

ErichDonGubler · ErichDonGubler · commit 5b78b57d86b3 · 2025-06-28T03:40:38.000Z
Differential Revision: https://phabricator.services.mozilla.com/D255381
diff --git a/dom/webgpu/Instance.cpp b/dom/webgpu/Instance.cpp
@@ -22,9 +22,7 @@
 #include "nsString.h"
 #include "nsStringFwd.h"
 
-#ifndef EARLY_BETA_OR_EARLIER
-#  include "mozilla/dom/WorkerPrivate.h"
-#endif
+#include "mozilla/dom/WorkerPrivate.h"
 
 #include <optional>
 #include <string_view>
@@ -48,7 +46,12 @@ static inline nsDependentCString ToCString(const std::string_view s) {
     return true;
   }
 
-  return StaticPrefs::dom_webgpu_workers_enabled();
+  dom::WorkerPrivate* wp = dom::GetCurrentThreadWorkerPrivate();
+  if (wp && wp->IsServiceWorker()) {
+    return StaticPrefs::dom_webgpu_service_workers_enabled();
+  }
+
+  return true;
 }
 
 /*static*/
diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
@@ -5505,8 +5505,8 @@
   value: @IS_EARLY_BETA_OR_EARLIER@
   mirror: always
 
-# Is support for the Web GPU API enabled on DOM workers?
-- name: dom.webgpu.workers.enabled
+# Is support for the Web GPU API enabled on service workers?
+- name: dom.webgpu.service-workers.enabled
   type: RelaxedAtomicBool
   value: @IS_EARLY_BETA_OR_EARLIER@
   mirror: always
