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diff --git a/third_party/libjingle/files/talk/base/task.cc b/third_party/libjingle/files/talk/base/task.cc
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+/*
+ * libjingle
+ * Copyright 2004--2006, 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.
+ */
+
+#include <algorithm>
+
+#include "talk/base/task.h"
+#include "talk/base/common.h"
+#include "talk/base/taskrunner.h"
+
+namespace talk_base {
+
+int32 Task::unique_id_seed_ = 0;
+
+Task::Task(Task *parent)
+    : state_(STATE_INIT),
+      parent_(parent),
+      blocked_(false),
+      done_(false),
+      aborted_(false),
+      busy_(false),
+      error_(false),
+      child_error_(false),
+      start_time_(0),
+      timeout_seconds_(0),
+      timeout_time_(0),
+      timeout_suspended_(false)  {
+  children_.reset(new ChildSet());
+  runner_ = ((parent == NULL) ?
+             reinterpret_cast<TaskRunner *>(this) :
+             parent->GetRunner());
+  if (parent_ != NULL) {
+    parent_->AddChild(this);
+  }
+
+  unique_id_ = unique_id_seed_++;
+
+  // sanity check that we didn't roll-over our id seed
+  ASSERT(unique_id_ < unique_id_seed_);
+}
+
+int64 Task::CurrentTime() {
+  return runner_->CurrentTime();
+}
+
+int64 Task::ElapsedTime() {
+  return CurrentTime() - start_time_;
+}
+
+void Task::Start() {
+  if (state_ != STATE_INIT)
+    return;
+  // Set the start time before starting the task.  Otherwise if the task
+  // finishes quickly and deletes the Task object, setting start_time_
+  // will crash.
+  start_time_ = CurrentTime();
+  GetRunner()->StartTask(this);
+}
+
+void Task::Step() {
+  if (done_) {
+#ifdef DEBUG
+    // we do not know how !blocked_ happens when done_ - should be impossible.
+    // But it causes problems, so in retail build, we force blocked_, and
+    // under debug we assert.
+    assert(blocked_);
+#else
+    blocked_ = true;
+#endif
+    return;
+  }
+
+  // Async Error() was called
+  if (error_) {
+    done_ = true;
+    state_ = STATE_ERROR;
+    blocked_ = true;
+//   obsolete - an errored task is not considered done now
+//   SignalDone();
+    Stop();
+    return;
+  }
+
+  busy_ = true;
+  int new_state = Process(state_);
+  busy_ = false;
+
+  if (aborted_) {
+    Abort(true);  // no need to wake because we're awake
+    return;
+  }
+
+  if (new_state == STATE_BLOCKED) {
+    blocked_ = true;
+    // Let the timeout continue
+  } else {
+    state_ = new_state;
+    blocked_ = false;
+    ResetTimeout();
+  }
+
+  if (new_state == STATE_DONE) {
+    done_ = true;
+  } else if (new_state == STATE_ERROR) {
+    done_ = true;
+    error_ = true;
+  }
+
+  if (done_) {
+//  obsolete - call this yourself
+//    SignalDone();
+    Stop();
+    blocked_ = true;
+  }
+}
+
+void Task::Abort(bool nowake) {
+  if (done_)
+    return;
+  aborted_ = true;
+  if (!busy_) {
+    done_ = true;
+    blocked_ = true;
+    error_ = true;
+    Stop();
+    if (!nowake)
+      GetRunner()->WakeTasks();
+  }
+}
+
+void Task::Wake() {
+  if (done_)
+    return;
+  if (blocked_) {
+    blocked_ = false;
+    GetRunner()->WakeTasks();
+  }
+}
+
+void Task::Error() {
+  if (error_ || done_)
+    return;
+  error_ = true;
+  Wake();
+}
+
+std::string Task::GetStateName(int state) const {
+  static const std::string STR_BLOCKED("BLOCKED");
+  static const std::string STR_INIT("INIT");
+  static const std::string STR_START("START");
+  static const std::string STR_DONE("DONE");
+  static const std::string STR_ERROR("ERROR");
+  static const std::string STR_RESPONSE("RESPONSE");
+  static const std::string STR_HUH("??");
+  switch (state) {
+    case STATE_BLOCKED: return STR_BLOCKED;
+    case STATE_INIT: return STR_INIT;
+    case STATE_START: return STR_START;
+    case STATE_DONE: return STR_DONE;
+    case STATE_ERROR: return STR_ERROR;
+    case STATE_RESPONSE: return STR_RESPONSE;
+  }
+  return STR_HUH;
+}
+
+int Task::Process(int state) {
+  int newstate = STATE_ERROR;
+
+  if (TimedOut()) {
+    ClearTimeout();
+    newstate = OnTimeout();
+    SignalTimeout();
+  } else {
+    switch (state) {
+      case STATE_INIT:
+        newstate = STATE_START;
+        break;
+      case STATE_START:
+        newstate = ProcessStart();
+        break;
+      case STATE_RESPONSE:
+        newstate = ProcessResponse();
+        break;
+      case STATE_DONE:
+      case STATE_ERROR:
+        newstate = STATE_BLOCKED;
+        break;
+    }
+  }
+
+  return newstate;
+}
+
+void Task::AddChild(Task *child) {
+  children_->insert(child);
+}
+
+bool Task::AllChildrenDone() {
+  for (ChildSet::iterator it = children_->begin();
+       it != children_->end();
+       ++it) {
+    if (!(*it)->IsDone())
+      return false;
+  }
+  return true;
+}
+
+bool Task::AnyChildError() {
+  return child_error_;
+}
+
+void Task::AbortAllChildren() {
+  if (children_->size() > 0) {
+    ChildSet copy = *children_;
+    for (ChildSet::iterator it = copy.begin(); it != copy.end(); ++it) {
+      (*it)->Abort(true);  // Note we do not wake
+    }
+  }
+}
+
+void Task::Stop() {
+  // No need to wake because we're either awake or in abort
+  AbortAllChildren();
+  parent_->OnChildStopped(this);
+}
+
+void Task::OnChildStopped(Task *child) {
+  if (child->HasError())
+    child_error_ = true;
+  children_->erase(child);
+}
+
+void Task::set_timeout_seconds(const int timeout_seconds) {
+  timeout_seconds_ = timeout_seconds;
+  ResetTimeout();
+}
+
+bool Task::TimedOut() {
+  return timeout_seconds_ &&
+    timeout_time_ &&
+    CurrentTime() > timeout_time_;
+}
+
+void Task::ResetTimeout() {
+  bool timeout_allowed = (state_ != STATE_INIT)
+                      && (state_ != STATE_DONE)
+                      && (state_ != STATE_ERROR);
+  if (timeout_seconds_ && timeout_allowed && !timeout_suspended_)
+    timeout_time_ = CurrentTime() +
+                    (timeout_seconds_ * kSecToMsec * kMsecTo100ns);
+  else
+    timeout_time_ = 0;
+
+  GetRunner()->UpdateTaskTimeout(this);
+}
+
+void Task::ClearTimeout() {
+  timeout_time_ = 0;
+  GetRunner()->UpdateTaskTimeout(this);
+}
+
+void Task::SuspendTimeout() {
+  if (!timeout_suspended_) {
+    timeout_suspended_ = true;
+    ResetTimeout();
+  }
+}
+
+void Task::ResumeTimeout() {
+  if (timeout_suspended_) {
+    timeout_suspended_ = false;
+    ResetTimeout();
+  }
+}
+
+} // namespace talk_base