diff -r 000000000000 -r 6474c204b198 dom/workers/SharedWorker.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/workers/SharedWorker.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,218 @@
+/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * 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 "SharedWorker.h"
+
+#include "nsPIDOMWindow.h"
+
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/dom/SharedWorkerBinding.h"
+#include "nsContentUtils.h"
+#include "nsIClassInfoImpl.h"
+#include "nsIDOMEvent.h"
+
+#include "MessagePort.h"
+#include "RuntimeService.h"
+#include "WorkerPrivate.h"
+
+using mozilla::dom::Optional;
+using mozilla::dom::Sequence;
+using namespace mozilla;
+
+USING_WORKERS_NAMESPACE
+
+SharedWorker::SharedWorker(nsPIDOMWindow* aWindow,
+                           WorkerPrivate* aWorkerPrivate)
+: DOMEventTargetHelper(aWindow), mWorkerPrivate(aWorkerPrivate),
+  mSuspended(false)
+{
+  AssertIsOnMainThread();
+  MOZ_ASSERT(aWorkerPrivate);
+
+  mSerial = aWorkerPrivate->NextMessagePortSerial();
+
+  mMessagePort = new MessagePort(aWindow, this, mSerial);
+}
+
+SharedWorker::~SharedWorker()
+{
+  AssertIsOnMainThread();
+  Close();
+  MOZ_ASSERT(!mWorkerPrivate);
+}
+
+// static
+already_AddRefed<SharedWorker>
+SharedWorker::Constructor(const GlobalObject& aGlobal, JSContext* aCx,
+                          const nsAString& aScriptURL,
+                          const mozilla::dom::Optional<nsAString>& aName,
+                          ErrorResult& aRv)
+{
+  AssertIsOnMainThread();
+
+  RuntimeService* rts = RuntimeService::GetOrCreateService();
+  if (!rts) {
+    aRv = NS_ERROR_NOT_AVAILABLE;
+    return nullptr;
+  }
+
+  nsCString name;
+  if (aName.WasPassed()) {
+    name = NS_ConvertUTF16toUTF8(aName.Value());
+  }
+
+  nsRefPtr<SharedWorker> sharedWorker;
+  nsresult rv = rts->CreateSharedWorker(aGlobal, aScriptURL, name,
+                                        getter_AddRefs(sharedWorker));
+  if (NS_FAILED(rv)) {
+    aRv = rv;
+    return nullptr;
+  }
+
+  return sharedWorker.forget();
+}
+
+already_AddRefed<MessagePort>
+SharedWorker::Port()
+{
+  AssertIsOnMainThread();
+
+  nsRefPtr<MessagePort> messagePort = mMessagePort;
+  return messagePort.forget();
+}
+
+void
+SharedWorker::Suspend()
+{
+  AssertIsOnMainThread();
+  MOZ_ASSERT(!IsSuspended());
+
+  mSuspended = true;
+}
+
+void
+SharedWorker::Resume()
+{
+  AssertIsOnMainThread();
+  MOZ_ASSERT(IsSuspended());
+
+  mSuspended = false;
+
+  if (!mSuspendedEvents.IsEmpty()) {
+    nsTArray<nsCOMPtr<nsIDOMEvent>> events;
+    mSuspendedEvents.SwapElements(events);
+
+    for (uint32_t index = 0; index < events.Length(); index++) {
+      nsCOMPtr<nsIDOMEvent>& event = events[index];
+      MOZ_ASSERT(event);
+
+      nsCOMPtr<nsIDOMEventTarget> target;
+      if (NS_SUCCEEDED(event->GetTarget(getter_AddRefs(target)))) {
+        bool ignored;
+        if (NS_FAILED(target->DispatchEvent(event, &ignored))) {
+          NS_WARNING("Failed to dispatch event!");
+        }
+      } else {
+        NS_WARNING("Failed to get target!");
+      }
+    }
+  }
+}
+
+void
+SharedWorker::QueueEvent(nsIDOMEvent* aEvent)
+{
+  AssertIsOnMainThread();
+  MOZ_ASSERT(aEvent);
+  MOZ_ASSERT(IsSuspended());
+
+  mSuspendedEvents.AppendElement(aEvent);
+}
+
+void
+SharedWorker::Close()
+{
+  AssertIsOnMainThread();
+
+  if (mMessagePort) {
+    mMessagePort->Close();
+  }
+
+  if (mWorkerPrivate) {
+    AutoSafeJSContext cx;
+    NoteDeadWorker(cx);
+  }
+}
+
+void
+SharedWorker::PostMessage(JSContext* aCx, JS::Handle<JS::Value> aMessage,
+                          const Optional<Sequence<JS::Value>>& aTransferable,
+                          ErrorResult& aRv)
+{
+  AssertIsOnMainThread();
+  MOZ_ASSERT(mWorkerPrivate);
+  MOZ_ASSERT(mMessagePort);
+
+  mWorkerPrivate->PostMessageToMessagePort(aCx, mMessagePort->Serial(),
+                                           aMessage, aTransferable, aRv);
+}
+
+void
+SharedWorker::NoteDeadWorker(JSContext* aCx)
+{
+  AssertIsOnMainThread();
+  MOZ_ASSERT(mWorkerPrivate);
+
+  mWorkerPrivate->UnregisterSharedWorker(aCx, this);
+  mWorkerPrivate = nullptr;
+}
+
+NS_IMPL_ADDREF_INHERITED(SharedWorker, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(SharedWorker, DOMEventTargetHelper)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(SharedWorker)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(SharedWorker)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(SharedWorker,
+                                                  DOMEventTargetHelper)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMessagePort)
+  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSuspendedEvents)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(SharedWorker,
+                                                DOMEventTargetHelper)
+  tmp->Close();
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mMessagePort)
+  NS_IMPL_CYCLE_COLLECTION_UNLINK(mSuspendedEvents)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+JSObject*
+SharedWorker::WrapObject(JSContext* aCx)
+{
+  AssertIsOnMainThread();
+
+  return SharedWorkerBinding::Wrap(aCx, this);
+}
+
+nsresult
+SharedWorker::PreHandleEvent(EventChainPreVisitor& aVisitor)
+{
+  AssertIsOnMainThread();
+
+  nsIDOMEvent*& event = aVisitor.mDOMEvent;
+
+  if (IsSuspended() && event) {
+    QueueEvent(event);
+
+    aVisitor.mCanHandle = false;
+    aVisitor.mParentTarget = nullptr;
+    return NS_OK;
+  }
+
+  return DOMEventTargetHelper::PreHandleEvent(aVisitor);
+}