Issue #1587 - Part 7: Rename FetchController to AbortController

Also renames FetchSignal to AbortSignal. Includes renaming the various
controlling prefs to enable.

dom/abort/AbortController.cpp

@@ -4,30 +4,30 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#include "FetchController.h"
+#include "AbortController.h"
-#include "FetchSignal.h"
+#include "AbortSignal.h"
-#include "mozilla/dom/FetchControllerBinding.h"
+#include "mozilla/dom/AbortControllerBinding.h"
 #include "WorkerPrivate.h"
 
 namespace mozilla {
 namespace dom {
 
-NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(FetchController, mGlobal, mSignal,
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(AbortController, mGlobal, mSignal,
                                       mFollowingSignal) 
 
-NS_IMPL_CYCLE_COLLECTING_ADDREF(FetchController)
+NS_IMPL_CYCLE_COLLECTING_ADDREF(AbortController)
-NS_IMPL_CYCLE_COLLECTING_RELEASE(FetchController)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(AbortController)
 
-NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FetchController)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AbortController)
   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
   NS_INTERFACE_MAP_ENTRY(nsISupports)
 NS_INTERFACE_MAP_END
 
 /* static */ bool
-FetchController::IsEnabled(JSContext* aCx, JSObject* aGlobal)
+AbortController::IsEnabled(JSContext* aCx, JSObject* aGlobal)
 {
   if (NS_IsMainThread()) {
-    return Preferences::GetBool("dom.fetchController.enabled", false);
+    return Preferences::GetBool("dom.abortController.enabled", false);
   }
 
   using namespace workers;
@@ -38,11 +38,11 @@ FetchController::IsEnabled(JSContext* aCx, JSObject* aGlobal)
     return false;
   }
 
-  return workerPrivate->FetchControllerEnabled();
+  return workerPrivate->AbortControllerEnabled();
 }
 
-/* static */ already_AddRefed<FetchController>
+/* static */ already_AddRefed<AbortController>
-FetchController::Constructor(const GlobalObject& aGlobal, ErrorResult& aRv)
+AbortController::Constructor(const GlobalObject& aGlobal, ErrorResult& aRv)
 {
   nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
   if (!global) {
@@ -50,39 +50,39 @@ FetchController::Constructor(const GlobalObject& aGlobal, ErrorResult& aRv)
     return nullptr;
   }
 
-  RefPtr<FetchController> fetchController = new FetchController(global);
+  RefPtr<AbortController> abortController = new AbortController(global);
-  return fetchController.forget();
+  return abortController.forget();
 }
 
-FetchController::FetchController(nsIGlobalObject* aGlobal)
+AbortController::AbortController(nsIGlobalObject* aGlobal)
   : mGlobal(aGlobal)
   , mAborted(false)
 {}
 
 JSObject*
-FetchController::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+AbortController::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
 {
-  return FetchControllerBinding::Wrap(aCx, this, aGivenProto);
+  return AbortControllerBinding::Wrap(aCx, this, aGivenProto);
 }
 
 nsIGlobalObject*
-FetchController::GetParentObject() const
+AbortController::GetParentObject() const
 {
   return mGlobal;
 }
 
-FetchSignal*
+AbortSignal*
-FetchController::Signal()
+AbortController::Signal()
 {
   if (!mSignal) {
-    mSignal = new FetchSignal(this, mAborted);
+    mSignal = new AbortSignal(this, mAborted);
   }
 
   return mSignal;
 }
 
 void
-FetchController::Abort()
+AbortController::Abort()
 {
   if (mAborted) {
     return;
@@ -96,29 +96,29 @@ FetchController::Abort()
 }
 
 void
-FetchController::Follow(FetchSignal& aSignal)
+AbortController::Follow(AbortSignal& aSignal)
 {
-  FetchSignal::Follower::Follow(&aSignal);
+  AbortSignal::Follower::Follow(&aSignal);
 }
 
 void
-FetchController::Unfollow(FetchSignal& aSignal)
+AbortController::Unfollow(AbortSignal& aSignal)
 {
   if (mFollowingSignal != &aSignal) {
     return;
   }
 
-  FetchSignal::Follower::Unfollow();
+  AbortSignal::Follower::Unfollow();
 }
 
-FetchSignal*
+AbortSignal*
-FetchController::Following() const
+AbortController::Following() const
 {
   return mFollowingSignal;
 }
 
 void
-FetchController::Aborted()
+AbortController::Aborted()
 {
   Abort();
 }

dom/abort/AbortController.h

@@ -4,11 +4,11 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#ifndef mozilla_dom_FetchController_h
+#ifndef mozilla_dom_AbortController_h
-#define mozilla_dom_FetchController_h
+#define mozilla_dom_AbortController_h
 
 #include "mozilla/dom/BindingDeclarations.h"
-#include "mozilla/dom/FetchSignal.h" 
+#include "mozilla/dom/AbortSignal.h" 
 #include "nsCycleCollectionParticipant.h"
 #include "nsWrapperCache.h"
 #include "mozilla/ErrorResult.h"
@@ -17,21 +17,21 @@
 namespace mozilla {
 namespace dom {
 
-class FetchController final : public nsISupports
+class AbortController final : public nsISupports
                             , public nsWrapperCache
-                            , public FetchSignal::Follower
+                            , public AbortSignal::Follower
 {
 public:
   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
-  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(FetchController)
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(AbortController)
 
   static bool
   IsEnabled(JSContext* aCx, JSObject* aGlobal);
 
-  static already_AddRefed<FetchController>
+  static already_AddRefed<AbortController>
   Constructor(const GlobalObject& aGlobal, ErrorResult& aRv);
 
-  explicit FetchController(nsIGlobalObject* aGlobal);
+  explicit AbortController(nsIGlobalObject* aGlobal);
 
   JSObject*
   WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
@@ -39,30 +39,30 @@ public:
   nsIGlobalObject*
   GetParentObject() const;
 
-  FetchSignal*
+  AbortSignal*
   Signal();
 
   void
   Abort();
 
   void
-  Follow(FetchSignal& aSignal);
+  Follow(AbortSignal& aSignal);
 
   void
-  Unfollow(FetchSignal& aSignal);
+  Unfollow(AbortSignal& aSignal);
 
-  FetchSignal*
+  AbortSignal*
   Following() const;
 
-  // FetchSignal::Follower
+  // AbortSignal::Follower
 
   void Aborted() override;
 
 private:
-  ~FetchController() = default;
+  ~AbortController() = default;
 
   nsCOMPtr<nsIGlobalObject> mGlobal;
-  RefPtr<FetchSignal> mSignal;
+  RefPtr<AbortSignal> mSignal;
 
   bool mAborted;
 };
@@ -70,4 +70,4 @@ private:
 } // dom namespace
 } // mozilla namespace
 
-#endif // mozilla_dom_FetchController_h
+#endif // mozilla_dom_AbortController_h

dom/abort/AbortSignal.cpp

@@ -4,57 +4,57 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#include "FetchSignal.h"
+#include "AbortSignal.h"
-#include "FetchController.h"
+#include "AbortController.h"
 #include "mozilla/dom/Event.h"
-#include "mozilla/dom/FetchSignalBinding.h"
+#include "mozilla/dom/AbortSignalBinding.h"
 
 namespace mozilla {
 namespace dom {
 
-NS_IMPL_CYCLE_COLLECTION_CLASS(FetchSignal)
+NS_IMPL_CYCLE_COLLECTION_CLASS(AbortSignal)
 
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(FetchSignal,
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(AbortSignal,
                                                   DOMEventTargetHelper)
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mController)
 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
 
-NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(FetchSignal,
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(AbortSignal,
                                                 DOMEventTargetHelper)
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mController)
 NS_IMPL_CYCLE_COLLECTION_UNLINK_END
 
-NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(FetchSignal)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(AbortSignal)
 NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
 
-NS_IMPL_ADDREF_INHERITED(FetchSignal, DOMEventTargetHelper)
+NS_IMPL_ADDREF_INHERITED(AbortSignal, DOMEventTargetHelper)
-NS_IMPL_RELEASE_INHERITED(FetchSignal, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(AbortSignal, DOMEventTargetHelper)
 
-FetchSignal::FetchSignal(FetchController* aController,
+AbortSignal::AbortSignal(AbortController* aController,
                          bool aAborted)
   : DOMEventTargetHelper(aController->GetParentObject())
   , mController(aController)
   , mAborted(aAborted)
 {}
 
-FetchSignal::FetchSignal(bool aAborted)
+AbortSignal::AbortSignal(bool aAborted)
   : mAborted(aAborted)
 {}
 
 JSObject*
-FetchSignal::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+AbortSignal::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
 {
-  return FetchSignalBinding::Wrap(aCx, this, aGivenProto);
+  return AbortSignalBinding::Wrap(aCx, this, aGivenProto);
 }
 
 bool
-FetchSignal::Aborted() const
+AbortSignal::Aborted() const
 {
   return mAborted;
 }
 
 void
-FetchSignal::Abort()
+AbortSignal::Abort()
 {
   MOZ_ASSERT(!mAborted);
   mAborted = true;
@@ -79,7 +79,7 @@ FetchSignal::Abort()
 }
 
 void
-FetchSignal::AddFollower(FetchSignal::Follower* aFollower)
+AbortSignal::AddFollower(AbortSignal::Follower* aFollower)
 {
   MOZ_DIAGNOSTIC_ASSERT(aFollower);
   if (!mFollowers.Contains(aFollower)) {
@@ -88,14 +88,14 @@ FetchSignal::AddFollower(FetchSignal::Follower* aFollower)
 }
 
 void
-FetchSignal::RemoveFollower(FetchSignal::Follower* aFollower)
+AbortSignal::RemoveFollower(AbortSignal::Follower* aFollower)
 {
   MOZ_DIAGNOSTIC_ASSERT(aFollower);
   mFollowers.RemoveElement(aFollower);
 }
 
 bool
-FetchSignal::CanAcceptFollower(FetchSignal::Follower* aFollower) const
+AbortSignal::CanAcceptFollower(AbortSignal::Follower* aFollower) const
 {
   MOZ_DIAGNOSTIC_ASSERT(aFollower);
 
@@ -107,7 +107,7 @@ FetchSignal::CanAcceptFollower(FetchSignal::Follower* aFollower) const
     return false;
   }
 
-  FetchSignal* following = mController->Following();
+  AbortSignal* following = mController->Following();
   if (!following) {
     return true;
   }
@@ -115,16 +115,16 @@ FetchSignal::CanAcceptFollower(FetchSignal::Follower* aFollower) const
   return following->CanAcceptFollower(aFollower);
 }
 
-// FetchSignal::Follower
+// AbortSignal::Follower
 // ----------------------------------------------------------------------------
 
-FetchSignal::Follower::~Follower()
+AbortSignal::Follower::~Follower()
 {
   Unfollow();
 }
 
 void
-FetchSignal::Follower::Follow(FetchSignal* aSignal)
+AbortSignal::Follower::Follow(AbortSignal* aSignal)
 {
   MOZ_DIAGNOSTIC_ASSERT(aSignal);
 
@@ -139,7 +139,7 @@ FetchSignal::Follower::Follow(FetchSignal* aSignal)
 }
 
 void
-FetchSignal::Follower::Unfollow()
+AbortSignal::Follower::Unfollow()
 {
   if (mFollowingSignal) {
     mFollowingSignal->RemoveFollower(this);

dom/abort/AbortSignal.h

@@ -4,21 +4,21 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#ifndef mozilla_dom_FetchSignal_h
+#ifndef mozilla_dom_AbortSignal_h
-#define mozilla_dom_FetchSignal_h
+#define mozilla_dom_AbortSignal_h
 
 #include "mozilla/DOMEventTargetHelper.h"
 
 namespace mozilla {
 namespace dom {
 
-class FetchController;
+class AbortController;
-class FetchSignal;
+class AbortSignal;
 
-class FetchSignal final : public DOMEventTargetHelper
+class AbortSignal final : public DOMEventTargetHelper
 {
 public:
-  // This class must be implemented by objects who want to follow a FetchSignal.
+  // This class must be implemented by objects who want to follow a AbortSignal.
   class Follower
   {
   public:
@@ -28,19 +28,19 @@ public:
     virtual ~Follower();
 
     void
-    Follow(FetchSignal* aSignal);
+    Follow(AbortSignal* aSignal);
 
     void
     Unfollow();
 
-    RefPtr<FetchSignal> mFollowingSignal;
+    RefPtr<AbortSignal> mFollowingSignal;
   };
 
   NS_DECL_ISUPPORTS_INHERITED
-  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(FetchSignal, DOMEventTargetHelper)
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AbortSignal, DOMEventTargetHelper)
 
-  FetchSignal(FetchController* aController, bool aAborted);
+  AbortSignal(AbortController* aController, bool aAborted);
-  explicit FetchSignal(bool aAborted);
+  explicit AbortSignal(bool aAborted);
 
   JSObject*
   WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
@@ -63,9 +63,9 @@ public:
   CanAcceptFollower(Follower* aFollower) const;
 
 private:
-  ~FetchSignal() = default;
+  ~AbortSignal() = default;
 
-  RefPtr<FetchController> mController;
+  RefPtr<AbortController> mController;
 
   // Raw pointers. Follower unregisters itself in the DTOR.
   nsTArray<Follower*> mFollowers;
@@ -76,4 +76,4 @@ private:
 } // dom namespace
 } // mozilla namespace
 
-#endif // mozilla_dom_FetchSignal_h
+#endif // mozilla_dom_AbortSignal_h

dom/abort/moz.build

@@ -10,13 +10,13 @@ with Files("**"):
 TEST_DIRS += ['tests']
 
 EXPORTS.mozilla.dom += [
-    'FetchController.h',
+    'AbortController.h',
-    'FetchSignal.h',
+    'AbortSignal.h',
 ]
 
 UNIFIED_SOURCES += [
-    'FetchController.cpp',
+    'AbortController.cpp',
-    'FetchSignal.cpp',
+    'AbortSignal.cpp',
 ]
 
 LOCAL_INCLUDES += [

dom/abort/tests/mochitest.ini

@@ -1,6 +1,6 @@
 [DEFAULT]
 support-files =
-  file_fetch_controller.html
+  file_abort_controller.html
   worker_fetch_controller.js
 
-[test_fetch_controller.html]
+[test_abort_controller.html]

dom/abort/tests/worker_abort_controller.js

@@ -1,5 +1,5 @@
 function testWorkerAbortedFetch() {
-  var fc = new FetchController();
+  var fc = new AbortController();
   fc.abort();
 
   fetch('slow.sjs', { signal: fc.signal }).then(() => {
@@ -10,7 +10,7 @@ function testWorkerAbortedFetch() {
 }
 
 function testWorkerFetchAndAbort() {
-  var fc = new FetchController();
+  var fc = new AbortController();
 
   var p = fetch('slow.sjs', { signal: fc.signal });
   fc.abort();

dom/fetch/Fetch.cpp

@@ -53,24 +53,24 @@ namespace dom {
 
 using namespace workers;
 
-// This class helps the proxying of FetchSignal changes cross threads.
+// This class helps the proxying of AbortSignal changes cross threads.
-class FetchSignalProxy final : public FetchSignal::Follower
+class AbortSignalProxy final : public AbortSignal::Follower
 {
   // This is created and released on the main-thread.
-  RefPtr<FetchSignal> mSignalMainThread;
+  RefPtr<AbortSignal> mSignalMainThread;
 
-  // This value is used only for the creation of FetchSignal on the
+  // This value is used only for the creation of AbortSignal on the
   // main-thread. They are not updated.
   const bool mAborted;
 
-  // This runnable propagates changes from the FetchSignal on workers to the
+  // This runnable propagates changes from the AbortSignal on workers to the
-  // FetchSignal on main-thread.
+  // AbortSignal on main-thread.
-  class FetchSignalProxyRunnable final : public Runnable
+  class AbortSignalProxyRunnable final : public Runnable
   {
-    RefPtr<FetchSignalProxy> mProxy;
+    RefPtr<AbortSignalProxy> mProxy;
 
   public:
-    explicit FetchSignalProxyRunnable(FetchSignalProxy* aProxy)
+    explicit AbortSignalProxyRunnable(AbortSignalProxy* aProxy)
       : mProxy(aProxy)
     {}
 
@@ -78,16 +78,16 @@ class FetchSignalProxy final : public FetchSignal::Follower
     Run() override
     {
       MOZ_ASSERT(NS_IsMainThread());
-      FetchSignal* signal = mProxy->GetOrCreateSignalForMainThread();
+      AbortSignal* signal = mProxy->GetOrCreateSignalForMainThread();
       signal->Abort();
       return NS_OK;
     }
   };
 
 public:
-  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FetchSignalProxy)
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(AbortSignalProxy)
 
-  explicit FetchSignalProxy(FetchSignal* aSignal)
+  explicit AbortSignalProxy(AbortSignal* aSignal)
     : mAborted(aSignal->Aborted())
   {
     Follow(aSignal);
@@ -96,17 +96,17 @@ public:
   void
   Aborted() override
   {
-    RefPtr<FetchSignalProxyRunnable> runnable =
+    RefPtr<AbortSignalProxyRunnable> runnable =
-      new FetchSignalProxyRunnable(this);
+      new AbortSignalProxyRunnable(this);
     NS_DispatchToMainThread(runnable);
   }
 
-  FetchSignal*
+  AbortSignal*
   GetOrCreateSignalForMainThread()
   {
     MOZ_ASSERT(NS_IsMainThread());
     if (!mSignalMainThread) {
-      mSignalMainThread = new FetchSignal(mAborted);
+      mSignalMainThread = new AbortSignal(mAborted);
     }
     return mSignalMainThread;
   }
@@ -118,7 +118,7 @@ public:
   }
 
 private:
-  ~FetchSignalProxy()
+  ~AbortSignalProxy()
   {
     NS_ReleaseOnMainThread(mSignalMainThread.forget());
   }
@@ -133,14 +133,14 @@ class WorkerFetchResolver final : public FetchDriverObserver
   friend class WorkerFetchResponseRunnable;
 
   RefPtr<PromiseWorkerProxy> mPromiseProxy;
-  RefPtr<FetchSignalProxy> mSignalProxy;
+  RefPtr<AbortSignalProxy> mSignalProxy;
   RefPtr<FetchObserver> mFetchObserver;
 
 public:
   // Returns null if worker is shutting down.
   static already_AddRefed<WorkerFetchResolver>
   Create(workers::WorkerPrivate* aWorkerPrivate, Promise* aPromise,
-         FetchSignal* aSignal, FetchObserver* aObserver)
+         AbortSignal* aSignal, FetchObserver* aObserver)
   {
     MOZ_ASSERT(aWorkerPrivate);
     aWorkerPrivate->AssertIsOnWorkerThread();
@@ -150,9 +150,9 @@ public:
       return nullptr;
     }
 
-    RefPtr<FetchSignalProxy> signalProxy;
+    RefPtr<AbortSignalProxy> signalProxy;
     if (aSignal) {
-      signalProxy = new FetchSignalProxy(aSignal);
+      signalProxy = new AbortSignalProxy(aSignal);
     }
 
     RefPtr<WorkerFetchResolver> r =
@@ -160,8 +160,8 @@ public:
     return r.forget();
   }
 
-  FetchSignal*
+  AbortSignal*
-  GetFetchSignal()
+  GetAbortSignal()
   {
     MOZ_ASSERT(NS_IsMainThread());
 
@@ -183,7 +183,7 @@ public:
 
 private:
    WorkerFetchResolver(PromiseWorkerProxy* aProxy,
-                       FetchSignalProxy* aSignalProxy,
+                       AbortSignalProxy* aSignalProxy,
                        FetchObserver* aObserver)
     : mPromiseProxy(aProxy)
     , mSignalProxy(aSignalProxy)
@@ -287,7 +287,7 @@ public:
       fetch->SetWorkerScript(spec);
     }
 
-    RefPtr<FetchSignal> signal = mResolver->GetFetchSignal();
+    RefPtr<AbortSignal> signal = mResolver->GetAbortSignal();
 
     // ...but release it before calling Fetch, because mResolver's callback can
     // be called synchronously and they want the mutex, too.
@@ -329,7 +329,7 @@ FetchRequest(nsIGlobalObject* aGlobal, const RequestOrUSVString& aInput,
 
   RefPtr<InternalRequest> r = request->GetInternalRequest();
 
-  RefPtr<FetchSignal> signal;
+  RefPtr<AbortSignal> signal;
   if (aInit.mSignal.WasPassed()) {
     signal = &aInit.mSignal.Value();
     // Let's FetchDriver to deal with an already aborted signal.

dom/fetch/FetchDriver.cpp

@@ -67,7 +67,7 @@ FetchDriver::~FetchDriver()
 }
 
 nsresult
-FetchDriver::Fetch(FetchSignal* aSignal, FetchDriverObserver* aObserver)
+FetchDriver::Fetch(AbortSignal* aSignal, FetchDriverObserver* aObserver)
 {
   workers::AssertIsOnMainThread();
 #ifdef DEBUG

dom/fetch/FetchDriver.h

@@ -12,7 +12,7 @@
 #include "nsIStreamListener.h"
 #include "nsIThreadRetargetableStreamListener.h"
 #include "mozilla/ConsoleReportCollector.h"
-#include "mozilla/dom/FetchSignal.h"
+#include "mozilla/dom/AbortSignal.h"
 #include "mozilla/dom/SRIMetadata.h"
 #include "mozilla/RefPtr.h"
 
@@ -84,7 +84,7 @@ class FetchDriver final : public nsIStreamListener,
                           public nsIChannelEventSink,
                           public nsIInterfaceRequestor,
                           public nsIThreadRetargetableStreamListener,
-                          public FetchSignal::Follower
+                          public AbortSignal::Follower
 {
 public:
   NS_DECL_ISUPPORTS
@@ -98,7 +98,7 @@ public:
               nsIPrincipal* aPrincipal,
               nsILoadGroup* aLoadGroup);
 
-  nsresult Fetch(FetchSignal* aSignal,
+  nsresult Fetch(AbortSignal* aSignal,
                  FetchDriverObserver* aObserver);
 
   void
@@ -111,7 +111,7 @@ public:
     mWorkerScript = aWorkerScirpt;
   }
 
-  // FetchSignal::Follower
+  // AbortSignal::Follower
 
   void
   Aborted() override;

dom/fetch/FetchObserver.cpp

@@ -46,7 +46,7 @@ FetchObserver::IsEnabled(JSContext* aCx, JSObject* aGlobal)
 }
 
 FetchObserver::FetchObserver(nsIGlobalObject* aGlobal,
-                             FetchSignal* aSignal)
+                             AbortSignal* aSignal)
   : DOMEventTargetHelper(aGlobal)
   , mState(FetchState::Requesting)
 {

dom/fetch/FetchObserver.h

@@ -9,13 +9,13 @@
 
 #include "mozilla/DOMEventTargetHelper.h"
 #include "mozilla/dom/FetchObserverBinding.h"
-#include "mozilla/dom/FetchSignal.h"
+#include "mozilla/dom/AbortSignal.h"
 
 namespace mozilla {
 namespace dom {
 
 class FetchObserver final : public DOMEventTargetHelper
-                          , public FetchSignal::Follower
+                          , public AbortSignal::Follower
 {
 public:
   NS_DECL_ISUPPORTS_INHERITED
@@ -24,7 +24,7 @@ public:
   static bool
   IsEnabled(JSContext* aCx, JSObject* aGlobal);
 
-  FetchObserver(nsIGlobalObject* aGlobal, FetchSignal* aSignal);
+  FetchObserver(nsIGlobalObject* aGlobal, AbortSignal* aSignal);
 
   JSObject*
   WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;

dom/fetch/Request.h

@@ -12,7 +12,7 @@
 #include "nsWrapperCache.h"
 
 #include "mozilla/dom/Fetch.h"
-#include "mozilla/dom/FetchSignal.h"
+#include "mozilla/dom/AbortSignal.h"
 #include "mozilla/dom/InternalRequest.h"
 // Required here due to certain WebIDL enums/classes being declared in both
 // files.

dom/tests/mochitest/fetch/file_fetch_observer.html

@@ -19,7 +19,7 @@ function testObserver() {
 }
 
 function testObserveAbort() {
-  var fc = new FetchController();
+  var fc = new AbortController();
 
   fetch('http://mochi.test:8888/tests/dom/tests/mochitest/fetch/slow.sjs', {
     signal: fc.signal,
@@ -37,7 +37,7 @@ function testObserveAbort() {
 }
 
 function testObserveComplete() {
-  var fc = new FetchController();
+  var fc = new AbortController();
 
   fetch('http://mochi.test:8888/tests/dom/tests/mochitest/fetch/slow.sjs', {
     signal: fc.signal,
@@ -54,7 +54,7 @@ function testObserveComplete() {
 }
 
 function testObserveErrored() {
-  var fc = new FetchController();
+  var fc = new AbortController();
 
   fetch('foo: bar', {
     signal: fc.signal,
@@ -71,7 +71,7 @@ function testObserveErrored() {
 }
 
 function testObserveResponding() {
-  var fc = new FetchController();
+  var fc = new AbortController();
 
   fetch('http://mochi.test:8888/tests/dom/tests/mochitest/fetch/slow.sjs', {
     signal: fc.signal,

dom/webidl/AbortController.webidl

@@ -5,11 +5,11 @@
  */
 
 [Constructor(), Exposed=(Window,Worker),
- Func="FetchController::IsEnabled"]
+ Func="AbortController::IsEnabled"]
-interface FetchController {
+interface AbortController {
-  readonly attribute FetchSignal signal;
+  readonly attribute AbortSignal signal;
 
   void abort();
-  void follow(FetchSignal signal);
+  void follow(AbortSignal signal);
-  void unfollow(FetchSignal signal);
+  void unfollow(AbortSignal signal);
 };

dom/webidl/AbortSignal.webidl

@@ -5,8 +5,8 @@
  */
 
 [Exposed=(Window,Worker),
- Func="FetchController::IsEnabled"]
+ Func="AbortController::IsEnabled"]
-interface FetchSignal : EventTarget {
+interface AbortSignal : EventTarget {
   readonly attribute boolean aborted;
 
   attribute EventHandler onabort;

dom/webidl/Request.webidl

@@ -48,8 +48,8 @@ dictionary RequestInit {
   RequestRedirect redirect;
   DOMString integrity;
 
-  [Func="FetchController::IsEnabled"]
+  [Func="AbortController::IsEnabled"]
-  FetchSignal signal;
+  AbortSignal signal;
 
   [Func="FetchObserver::IsEnabled"]
   ObserverCallback observe;

dom/webidl/moz.build

@@ -17,6 +17,8 @@ PREPROCESSED_WEBIDL_FILES = [
 ]
 
 WEBIDL_FILES = [
+    'AbortController.webidl',
+    'AbortSignal.webidl',
     'AbstractWorker.webidl',
     'AnalyserNode.webidl',
     'Animatable.webidl',
@@ -141,10 +143,8 @@ WEBIDL_FILES = [
     'ExtendableMessageEvent.webidl',
     'FakePluginTagInit.webidl',
     'Fetch.webidl',
-    'FetchController.webidl',
     'FetchEvent.webidl',
     'FetchObserver.webidl',
-    'FetchSignal.webidl',
     'File.webidl',
     'FileList.webidl',
     'FileMode.webidl',

dom/workers/WorkerPrefs.h

@@ -39,7 +39,7 @@ WORKER_SIMPLE_PREF("dom.push.enabled", PushEnabled, PUSH_ENABLED)
 WORKER_SIMPLE_PREF("dom.requestcontext.enabled", RequestContextEnabled, REQUESTCONTEXT_ENABLED)
 WORKER_SIMPLE_PREF("gfx.offscreencanvas.enabled", OffscreenCanvasEnabled, OFFSCREENCANVAS_ENABLED)
 WORKER_SIMPLE_PREF("dom.webkitBlink.dirPicker.enabled", WebkitBlinkDirectoryPickerEnabled, DOM_WEBKITBLINK_DIRPICKER_WEBKITBLINK)
-WORKER_SIMPLE_PREF("dom.fetchController.enabled", FetchControllerEnabled, FETCHCONTROLLER_ENABLED)
+WORKER_SIMPLE_PREF("dom.abortController.enabled", AbortControllerEnabled, ABORTCONTROLLER_ENABLED)
 WORKER_SIMPLE_PREF("dom.fetchObserver.enabled", FetchObserverEnabled, FETCHOBSERVER_ENABLED)
 WORKER_PREF("dom.workers.latestJSVersion", JSVersionChanged)
 WORKER_PREF("intl.accept_languages", PrefLanguagesChanged)