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diff --git a/chromium/third_party/libjingle/source/talk/base/asyncinvoker-inl.h b/chromium/third_party/libjingle/source/talk/base/asyncinvoker-inl.h
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+/*
+ * libjingle
+ * Copyright 2014 Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TALK_BASE_ASYNCINVOKER_INL_H_
+#define TALK_BASE_ASYNCINVOKER_INL_H_
+
+#include "talk/base/bind.h"
+#include "talk/base/callback.h"
+#include "talk/base/criticalsection.h"
+#include "talk/base/messagehandler.h"
+#include "talk/base/refcount.h"
+#include "talk/base/scoped_ref_ptr.h"
+#include "talk/base/sigslot.h"
+#include "talk/base/thread.h"
+
+namespace talk_base {
+
+class AsyncInvoker;
+
+// Helper class for AsyncInvoker. Runs a task and triggers a callback
+// on the calling thread if necessary. Instances are ref-counted so their
+// lifetime can be independent of AsyncInvoker.
+class AsyncClosure : public RefCountInterface {
+ public:
+  virtual ~AsyncClosure() {}
+  // Runs the asynchronous task, and triggers a callback to the calling
+  // thread if needed. Should be called from the target thread.
+  virtual void Execute() = 0;
+};
+
+// Simple closure that doesn't trigger a callback for the calling thread.
+template <class FunctorT>
+class FireAndForgetAsyncClosure : public AsyncClosure {
+ public:
+  explicit FireAndForgetAsyncClosure(const FunctorT& functor)
+      : functor_(functor) {}
+  virtual void Execute() {
+    functor_();
+  }
+ private:
+  FunctorT functor_;
+};
+
+// Base class for closures that may trigger a callback for the calling thread.
+// Listens for the "destroyed" signals from the calling thread and the invoker,
+// and cancels the callback to the calling thread if either is destroyed.
+class NotifyingAsyncClosureBase : public AsyncClosure,
+                                  public sigslot::has_slots<> {
+ public:
+  virtual ~NotifyingAsyncClosureBase() { disconnect_all(); }
+
+ protected:
+  NotifyingAsyncClosureBase(AsyncInvoker* invoker, Thread* calling_thread);
+  void TriggerCallback();
+  void SetCallback(const Callback0<void>& callback) {
+    CritScope cs(&crit_);
+    callback_ = callback;
+  }
+  bool CallbackCanceled() const { return calling_thread_ == NULL; }
+
+ private:
+  Callback0<void> callback_;
+  CriticalSection crit_;
+  AsyncInvoker* invoker_;
+  Thread* calling_thread_;
+
+  void CancelCallback();
+};
+
+// Closures that have a non-void return value and require a callback.
+template <class ReturnT, class FunctorT, class HostT>
+class NotifyingAsyncClosure : public NotifyingAsyncClosureBase {
+ public:
+  NotifyingAsyncClosure(AsyncInvoker* invoker,
+                        Thread* calling_thread,
+                        const FunctorT& functor,
+                        void (HostT::*callback)(ReturnT),
+                        HostT* callback_host)
+      :  NotifyingAsyncClosureBase(invoker, calling_thread),
+         functor_(functor),
+         callback_(callback),
+         callback_host_(callback_host) {}
+  virtual void Execute() {
+    ReturnT result = functor_();
+    if (!CallbackCanceled()) {
+      SetCallback(Callback0<void>(Bind(callback_, callback_host_, result)));
+      TriggerCallback();
+    }
+  }
+
+ private:
+  FunctorT functor_;
+  void (HostT::*callback_)(ReturnT);
+  HostT* callback_host_;
+};
+
+// Closures that have a void return value and require a callback.
+template <class FunctorT, class HostT>
+class NotifyingAsyncClosure<void, FunctorT, HostT>
+    : public NotifyingAsyncClosureBase {
+ public:
+  NotifyingAsyncClosure(AsyncInvoker* invoker,
+                        Thread* calling_thread,
+                        const FunctorT& functor,
+                        void (HostT::*callback)(),
+                        HostT* callback_host)
+      : NotifyingAsyncClosureBase(invoker, calling_thread),
+        functor_(functor) {
+    SetCallback(Callback0<void>(Bind(callback, callback_host)));
+  }
+  virtual void Execute() {
+    functor_();
+    TriggerCallback();
+  }
+
+ private:
+  FunctorT functor_;
+};
+
+}  // namespace talk_base
+
+#endif  // TALK_BASE_ASYNCINVOKER_INL_H_