Add missing check for quitting from MessagePumpLibevent

base/message_loop/message_pump_libevent.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_loop/message_pump_libevent.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>
 
@@ skipping 256 matching lines @@
         event_base_set(event_base_, timer_event.get());
         event_add(timer_event.get(), &poll_tv);
         event_base_loop(event_base_, EVLOOP_ONCE);
         event_del(timer_event.get());
       } else {
         // It looks like delayed_work_time_ indicates a time in the past, so we
         // need to call DoDelayedWork now.
         delayed_work_time_ = TimeTicks();
       }
     }
+
+    if (!keep_running_)
+      break;
   }
 }
 
 void MessagePumpLibevent::Quit() {
   DCHECK(in_run_) << "Quit was called outside of Run!";
   // Tell both libevent and Run that they should break out of their loops.
   keep_running_ = false;
   ScheduleWork();
 }
 
@@ skipping 77 matching lines @@
   // Remove and discard the wakeup byte.
   char buf;
   int nread = HANDLE_EINTR(read(socket, &buf, 1));
   DCHECK_EQ(nread, 1);
   that->processed_io_events_ = true;
   // Tell libevent to break out of inner loop.
   event_base_loopbreak(that->event_base_);
 }
 
 }  // namespace base