Bug 870564 - Youtube video freezes after a long time r=jdm

netwerk/ipc/ChannelEventQueue.h

@@ -10,6 +10,7 @@
 
 #include <nsTArray.h>
 #include <nsAutoPtr.h>
+#include <nsThreadUtils.h>
 
 class nsISupports;
 
@@ -35,10 +36,13 @@ class AutoEventEnqueuerBase;
 
 class ChannelEventQueue
 {
+  NS_INLINE_DECL_REFCOUNTING(ChannelEventQueue)
+
  public:
   ChannelEventQueue(nsISupports *owner)
-    : mForced(false)
+    : mSuspendCount(0)
     , mSuspended(false)
+    , mForced(false)
     , mFlushing(false)
     , mOwner(owner) {}
 
@@ -63,22 +67,21 @@ class ChannelEventQueue
   // Suspend/resume event queue.  ShouldEnqueue() will return true and no events
   // will be run/flushed until resume is called.  These should be called when
   // the channel owning the event queue is suspended/resumed.
-  // - Note: these suspend/resume functions are NOT meant to be called
-  //   recursively: call them only at initial suspend, and actual resume).
-  // - Note: Resume flushes the queue and invokes any pending callbacks
-  //   immediately--caller must arrange any needed asynchronicity vis a vis
-  //   the channel's own Resume() method.
   inline void Suspend();
+  // Resume flushes the queue asynchronously, i.e. items in queue will be
+  // dispatched in a new event on the current thread.
   inline void Resume();
 
  private:
   inline void MaybeFlushQueue();
   void FlushQueue();
+  inline void CompleteResume();
 
   nsTArray<nsAutoPtr<ChannelEvent> > mEventQueue;
 
+  uint32_t mSuspendCount;
+  bool     mSuspended;
   bool mForced;
-  bool mSuspended;
   bool mFlushing;
 
   // Keep ptr to avoid refcount cycle: only grab ref during flushing.
@@ -120,20 +123,37 @@ ChannelEventQueue::EndForcedQueueing()
 inline void
 ChannelEventQueue::Suspend()
 {
-  NS_ABORT_IF_FALSE(!mSuspended,
-                    "ChannelEventQueue::Suspend called recursively");
-
   mSuspended = true;
+  mSuspendCount++;
+}
+
+inline void
+ChannelEventQueue::CompleteResume()
+{
+  // channel may have been suspended again since Resume fired event to call this.
+  if (!mSuspendCount) {
+    // we need to remain logically suspended (for purposes of queuing incoming
+    // messages) until this point, else new incoming messages could run before
+    // queued ones.
+    mSuspended = false;
+    MaybeFlushQueue();
+  }
 }
 
 inline void
 ChannelEventQueue::Resume()
 {
-  NS_ABORT_IF_FALSE(mSuspended,
+  // Resuming w/o suspend: error in debug mode, ignore in build
-                    "ChannelEventQueue::Resume called when not suspended!");
+  MOZ_ASSERT(mSuspendCount > 0);
+  if (mSuspendCount <= 0) {
+    return;
+  }
 
-  mSuspended = false;
+  if (!--mSuspendCount) {
-  MaybeFlushQueue();
+    nsRefPtr<nsRunnableMethod<ChannelEventQueue> > event =
+      NS_NewRunnableMethod(this, &ChannelEventQueue::CompleteResume);
+    NS_DispatchToCurrentThread(event);
+  }
 }
 
 inline void
@@ -151,14 +171,14 @@ ChannelEventQueue::MaybeFlushQueue()
 class AutoEventEnqueuer
 {
  public:
-  AutoEventEnqueuer(ChannelEventQueue &queue) : mEventQueue(queue) {
+  AutoEventEnqueuer(ChannelEventQueue *queue) : mEventQueue(queue) {
-    mEventQueue.StartForcedQueueing();
+    mEventQueue->StartForcedQueueing();
   }
   ~AutoEventEnqueuer() {
-    mEventQueue.EndForcedQueueing();
+    mEventQueue->EndForcedQueueing();
   }
  private:
-  ChannelEventQueue &mEventQueue;
+  ChannelEventQueue* mEventQueue;
 };
 
 }

netwerk/protocol/ftp/FTPChannelChild.cpp

@@ -30,7 +30,6 @@ namespace net {
 
 FTPChannelChild::FTPChannelChild(nsIURI* uri)
 : mIPCOpen(false)
-, ALLOW_THIS_IN_INITIALIZER_LIST(mEventQ(static_cast<nsIFTPChannel*>(this)))
 , mCanceled(false)
 , mSuspendCount(0)
 , mIsPending(false)
@@ -42,6 +41,7 @@ FTPChannelChild::FTPChannelChild(nsIURI* uri)
   // grab a reference to the handler to ensure that it doesn't go away.
   NS_ADDREF(gFtpHandler);
   SetURI(uri);
+  mEventQ = new ChannelEventQueue(static_cast<nsIFTPChannel*>(this));
 }
 
 FTPChannelChild::~FTPChannelChild()
@@ -242,9 +242,9 @@ FTPChannelChild::RecvOnStartRequest(const int64_t& aContentLength,
                                     const nsCString& aEntityID,
                                     const URIParams& aURI)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new FTPStartRequestEvent(this, aContentLength, aContentType,
+    mEventQ->Enqueue(new FTPStartRequestEvent(this, aContentLength, aContentType,
-                                             aLastModified, aEntityID, aURI));
+                                              aLastModified, aEntityID, aURI));
   } else {
     DoOnStartRequest(aContentLength, aContentType, aLastModified,
                      aEntityID, aURI);
@@ -296,8 +296,8 @@ FTPChannelChild::RecvOnDataAvailable(const nsCString& data,
                                      const uint64_t& offset,
                                      const uint32_t& count)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new FTPDataAvailableEvent(this, data, offset, count));
+    mEventQ->Enqueue(new FTPDataAvailableEvent(this, data, offset, count));
   } else {
     DoOnDataAvailable(data, offset, count);
   }
@@ -351,8 +351,8 @@ class FTPStopRequestEvent : public ChannelEvent
 bool
 FTPChannelChild::RecvOnStopRequest(const nsresult& statusCode)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new FTPStopRequestEvent(this, statusCode));
+    mEventQ->Enqueue(new FTPStopRequestEvent(this, statusCode));
   } else {
     DoOnStopRequest(statusCode);
   }
@@ -399,8 +399,8 @@ class FTPFailedAsyncOpenEvent : public ChannelEvent
 bool
 FTPChannelChild::RecvFailedAsyncOpen(const nsresult& statusCode)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new FTPFailedAsyncOpenEvent(this, statusCode));
+    mEventQ->Enqueue(new FTPFailedAsyncOpenEvent(this, statusCode));
   } else {
     DoFailedAsyncOpen(statusCode);
   }
@@ -443,8 +443,8 @@ class FTPDeleteSelfEvent : public ChannelEvent
 bool
 FTPChannelChild::RecvDeleteSelf()
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new FTPDeleteSelfEvent(this));
+    mEventQ->Enqueue(new FTPDeleteSelfEvent(this));
   } else {
     DoDeleteSelf();
   }
@@ -477,32 +477,12 @@ FTPChannelChild::Suspend()
   NS_ENSURE_TRUE(mIPCOpen, NS_ERROR_NOT_AVAILABLE);
   if (!mSuspendCount++) {
     SendSuspend();
-    mEventQ.Suspend();
   }
+  mEventQ->Suspend();
+
   return NS_OK;
 }
 
-nsresult
-FTPChannelChild::AsyncCall(void (FTPChannelChild::*funcPtr)(),
-                           nsRunnableMethod<FTPChannelChild> **retval)
-{
-  nsresult rv;
-
-  nsRefPtr<nsRunnableMethod<FTPChannelChild> > event = NS_NewRunnableMethod(this, funcPtr);
-  rv = NS_DispatchToCurrentThread(event);
-  if (NS_SUCCEEDED(rv) && retval) {
-    *retval = event;
-  }
-
-  return rv;
-}
-
-void
-FTPChannelChild::CompleteResume()
-{
-  mEventQ.Resume();
-}
-
 NS_IMETHODIMP
 FTPChannelChild::Resume()
 {
@@ -510,8 +490,9 @@ FTPChannelChild::Resume()
 
   if (!--mSuspendCount) {
     SendResume();
-    AsyncCall(&FTPChannelChild::CompleteResume);
   }
+  mEventQ->Resume();
+
   return NS_OK;
 }
 

netwerk/protocol/ftp/FTPChannelChild.h

@@ -100,15 +100,10 @@ protected:
   friend class FTPDeleteSelfEvent;
 
 private:
-  // Called asynchronously from Resume: continues any pending calls into client.
-  void CompleteResume();
-  nsresult AsyncCall(void (FTPChannelChild::*funcPtr)(),
-                     nsRunnableMethod<FTPChannelChild> **retval = nullptr);
-
   nsCOMPtr<nsIInputStream> mUploadStream;
 
   bool mIPCOpen;
-  ChannelEventQueue mEventQ;
+  nsRefPtr<ChannelEventQueue> mEventQ;
   bool mCanceled;
   uint32_t mSuspendCount;
   bool mIsPending;

netwerk/protocol/http/HttpChannelChild.cpp

@@ -38,9 +38,10 @@ HttpChannelChild::HttpChannelChild()
   , mSendResumeAt(false)
   , mIPCOpen(false)
   , mKeptAlive(false)
-  , ALLOW_THIS_IN_INITIALIZER_LIST(mEventQ(static_cast<nsIHttpChannel*>(this)))
 {
   LOG(("Creating HttpChannelChild @%x\n", this));
+
+  mEventQ = new ChannelEventQueue(static_cast<nsIHttpChannel*>(this));
 }
 
 HttpChannelChild::~HttpChannelChild()
@@ -141,8 +142,8 @@ bool
 HttpChannelChild::RecvAssociateApplicationCache(const nsCString &groupID,
                                                 const nsCString &clientID)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new AssociateApplicationCacheEvent(this, groupID, clientID));
+    mEventQ->Enqueue(new AssociateApplicationCacheEvent(this, groupID, clientID));
   } else {
     AssociateApplicationCache(groupID, clientID);
   }
@@ -222,8 +223,8 @@ HttpChannelChild::RecvOnStartRequest(const nsHttpResponseHead& responseHead,
                                      const NetAddr& selfAddr,
                                      const NetAddr& peerAddr)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new StartRequestEvent(this, responseHead, useResponseHead,
+    mEventQ->Enqueue(new StartRequestEvent(this, responseHead, useResponseHead,
                                           requestHeaders, isFromCache,
                                           cacheEntryAvailable,
                                           cacheExpirationTime, cachedCharset,
@@ -331,8 +332,8 @@ HttpChannelChild::RecvOnTransportAndData(const nsresult& status,
                                          const uint64_t& offset,
                                          const uint32_t& count)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new TransportAndDataEvent(this, status, progress,
+    mEventQ->Enqueue(new TransportAndDataEvent(this, status, progress,
                                               progressMax, data, offset,
                                               count));
   } else {
@@ -427,8 +428,8 @@ class StopRequestEvent : public ChannelEvent
 bool
 HttpChannelChild::RecvOnStopRequest(const nsresult& statusCode)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new StopRequestEvent(this, statusCode));
+    mEventQ->Enqueue(new StopRequestEvent(this, statusCode));
   } else {
     OnStopRequest(statusCode);
   }
@@ -491,8 +492,8 @@ bool
 HttpChannelChild::RecvOnProgress(const uint64_t& progress,
                                  const uint64_t& progressMax)
 {
-  if (mEventQ.ShouldEnqueue())  {
+  if (mEventQ->ShouldEnqueue())  {
-    mEventQ.Enqueue(new ProgressEvent(this, progress, progressMax));
+    mEventQ->Enqueue(new ProgressEvent(this, progress, progressMax));
   } else {
     OnProgress(progress, progressMax);
   }
@@ -544,8 +545,8 @@ class StatusEvent : public ChannelEvent
 bool
 HttpChannelChild::RecvOnStatus(const nsresult& status)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new StatusEvent(this, status));
+    mEventQ->Enqueue(new StatusEvent(this, status));
   } else {
     OnStatus(status);
   }
@@ -594,8 +595,8 @@ class FailedAsyncOpenEvent : public ChannelEvent
 bool
 HttpChannelChild::RecvFailedAsyncOpen(const nsresult& status)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new FailedAsyncOpenEvent(this, status));
+    mEventQ->Enqueue(new FailedAsyncOpenEvent(this, status));
   } else {
     FailedAsyncOpen(status);
   }
@@ -641,8 +642,8 @@ class DeleteSelfEvent : public ChannelEvent
 bool
 HttpChannelChild::RecvDeleteSelf()
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new DeleteSelfEvent(this));
+    mEventQ->Enqueue(new DeleteSelfEvent(this));
   } else {
     DeleteSelf();
   }
@@ -688,8 +689,8 @@ HttpChannelChild::RecvRedirect1Begin(const uint32_t& newChannelId,
                                      const uint32_t& redirectFlags,
                                      const nsHttpResponseHead& responseHead)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new Redirect1Event(this, newChannelId, newUri,
+    mEventQ->Enqueue(new Redirect1Event(this, newChannelId, newUri,
                                        redirectFlags, responseHead));
   } else {
     Redirect1Begin(newChannelId, newUri, redirectFlags, responseHead);
@@ -763,8 +764,8 @@ class Redirect3Event : public ChannelEvent
 bool
 HttpChannelChild::RecvRedirect3Complete()
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new Redirect3Event(this));
+    mEventQ->Enqueue(new Redirect3Event(this));
   } else {
     Redirect3Complete();
   }
@@ -931,24 +932,12 @@ HttpChannelChild::Suspend()
   NS_ENSURE_TRUE(RemoteChannelExists(), NS_ERROR_NOT_AVAILABLE);
   if (!mSuspendCount++) {
     SendSuspend();
-    mEventQ.Suspend();
   }
+  mEventQ->Suspend();
+
   return NS_OK;
 }
 
-void
-HttpChannelChild::CompleteResume()
-{
-  if (mCallOnResume) {
-    (this->*mCallOnResume)();
-    mCallOnResume = 0;
-  }
-
-  // Don't resume event queue until now, else queued events could get
-  // flushed/called before mCallOnResume, which needs to run first.
-  mEventQ.Resume();
-}
-
 NS_IMETHODIMP
 HttpChannelChild::Resume()
 {
@@ -959,8 +948,13 @@ HttpChannelChild::Resume()
 
   if (!--mSuspendCount) {
     SendResume();
-    rv = AsyncCall(&HttpChannelChild::CompleteResume);
+    if (mCallOnResume) {
+      AsyncCall(mCallOnResume);
+      mCallOnResume = nullptr;
+    }
   }
+  mEventQ->Resume();
+
   return rv;
 }
 

netwerk/protocol/http/HttpChannelChild.h

@@ -138,7 +138,7 @@ private:
 
   bool mIPCOpen;
   bool mKeptAlive;            // IPC kept open, but only for security info
-  ChannelEventQueue mEventQ;
+  nsRefPtr<ChannelEventQueue> mEventQ;
 
   // true after successful AsyncOpen until OnStopRequest completes.
   bool RemoteChannelExists() { return mIPCOpen && !mKeptAlive; }
@@ -173,9 +173,6 @@ private:
   void Redirect3Complete();
   void DeleteSelf();
 
-  // Called asynchronously from Resume: continues any pending calls into client.
-  void CompleteResume();
-
   friend class AssociateApplicationCacheEvent;
   friend class StartRequestEvent;
   friend class StopRequestEvent;

netwerk/protocol/websocket/WebSocketChannelChild.cpp

@@ -49,11 +49,11 @@ NS_INTERFACE_MAP_BEGIN(WebSocketChannelChild)
 NS_INTERFACE_MAP_END
 
 WebSocketChannelChild::WebSocketChannelChild(bool aSecure)
-: ALLOW_THIS_IN_INITIALIZER_LIST(mEventQ(static_cast<nsIWebSocketChannel*>(this)))
+ : mIPCOpen(false)
-, mIPCOpen(false)
 {
   LOG(("WebSocketChannelChild::WebSocketChannelChild() %p\n", this));
   BaseWebSocketChannel::mEncrypted = aSecure;
+  mEventQ = new ChannelEventQueue(static_cast<nsIWebSocketChannel*>(this));
 }
 
 WebSocketChannelChild::~WebSocketChannelChild()
@@ -102,8 +102,8 @@ bool
 WebSocketChannelChild::RecvOnStart(const nsCString& aProtocol,
                                    const nsCString& aExtensions)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new StartEvent(this, aProtocol, aExtensions));
+    mEventQ->Enqueue(new StartEvent(this, aProtocol, aExtensions));
   } else {
     OnStart(aProtocol, aExtensions);
   }
@@ -145,8 +145,8 @@ class StopEvent : public ChannelEvent
 bool
 WebSocketChannelChild::RecvOnStop(const nsresult& aStatusCode)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new StopEvent(this, aStatusCode));
+    mEventQ->Enqueue(new StopEvent(this, aStatusCode));
   } else {
     OnStop(aStatusCode);
   }
@@ -191,8 +191,8 @@ class MessageEvent : public ChannelEvent
 bool
 WebSocketChannelChild::RecvOnMessageAvailable(const nsCString& aMsg)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new MessageEvent(this, aMsg, false));
+    mEventQ->Enqueue(new MessageEvent(this, aMsg, false));
   } else {
     OnMessageAvailable(aMsg);
   }
@@ -212,8 +212,8 @@ WebSocketChannelChild::OnMessageAvailable(const nsCString& aMsg)
 bool
 WebSocketChannelChild::RecvOnBinaryMessageAvailable(const nsCString& aMsg)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new MessageEvent(this, aMsg, true));
+    mEventQ->Enqueue(new MessageEvent(this, aMsg, true));
   } else {
     OnBinaryMessageAvailable(aMsg);
   }
@@ -251,8 +251,8 @@ class AcknowledgeEvent : public ChannelEvent
 bool
 WebSocketChannelChild::RecvOnAcknowledge(const uint32_t& aSize)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new AcknowledgeEvent(this, aSize));
+    mEventQ->Enqueue(new AcknowledgeEvent(this, aSize));
   } else {
     OnAcknowledge(aSize);
   }
@@ -294,8 +294,8 @@ bool
 WebSocketChannelChild::RecvOnServerClose(const uint16_t& aCode,
                                          const nsCString& aReason)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new ServerCloseEvent(this, aCode, aReason));
+    mEventQ->Enqueue(new ServerCloseEvent(this, aCode, aReason));
   } else {
     OnServerClose(aCode, aReason);
   }

netwerk/protocol/websocket/WebSocketChannelChild.h

@@ -55,7 +55,7 @@ class WebSocketChannelChild : public BaseWebSocketChannel,
   void OnServerClose(const uint16_t& aCode, const nsCString& aReason);
   void AsyncOpenFailed();  
 
-  ChannelEventQueue mEventQ;
+  nsRefPtr<ChannelEventQueue> mEventQ;
   bool mIPCOpen;
 
   friend class StartEvent;

netwerk/protocol/wyciwyg/WyciwygChannelChild.cpp

@@ -41,9 +41,9 @@ WyciwygChannelChild::WyciwygChannelChild()
   , mState(WCC_NEW)
   , mIPCOpen(false)
   , mSentAppData(false)
-  , ALLOW_THIS_IN_INITIALIZER_LIST(mEventQ(NS_ISUPPORTS_CAST(nsIWyciwygChannel*, this)))
 {
   LOG(("Creating WyciwygChannelChild @%x\n", this));
+  mEventQ = new ChannelEventQueue(NS_ISUPPORTS_CAST(nsIWyciwygChannel*, this));
 }
 
 WyciwygChannelChild::~WyciwygChannelChild()
@@ -117,8 +117,8 @@ WyciwygChannelChild::RecvOnStartRequest(const nsresult& statusCode,
                                         const nsCString& charset,
                                         const nsCString& securityInfo)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new WyciwygStartRequestEvent(this, statusCode,
+    mEventQ->Enqueue(new WyciwygStartRequestEvent(this, statusCode,
                                                  contentLength, source,
                                                  charset, securityInfo));
   } else {
@@ -172,8 +172,8 @@ bool
 WyciwygChannelChild::RecvOnDataAvailable(const nsCString& data,
                                          const uint64_t& offset)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new WyciwygDataAvailableEvent(this, data, offset));
+    mEventQ->Enqueue(new WyciwygDataAvailableEvent(this, data, offset));
   } else {
     OnDataAvailable(data, offset);
   }
@@ -233,8 +233,8 @@ private:
 bool
 WyciwygChannelChild::RecvOnStopRequest(const nsresult& statusCode)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new WyciwygStopRequestEvent(this, statusCode));
+    mEventQ->Enqueue(new WyciwygStopRequestEvent(this, statusCode));
   } else {
     OnStopRequest(statusCode);
   }
@@ -290,8 +290,8 @@ class WyciwygCancelEvent : public ChannelEvent
 bool
 WyciwygChannelChild::RecvCancelEarly(const nsresult& statusCode)
 {
-  if (mEventQ.ShouldEnqueue()) {
+  if (mEventQ->ShouldEnqueue()) {
-    mEventQ.Enqueue(new WyciwygCancelEvent(this, statusCode));
+    mEventQ->Enqueue(new WyciwygCancelEvent(this, statusCode));
   } else {
     CancelEarly(statusCode);
   }

netwerk/protocol/wyciwyg/WyciwygChannelChild.h

@@ -99,7 +99,7 @@ private:
 
   bool mIPCOpen;
   bool mSentAppData;
-  ChannelEventQueue mEventQ;
+  nsRefPtr<ChannelEventQueue> mEventQ;
 
   friend class WyciwygStartRequestEvent;
   friend class WyciwygDataAvailableEvent;