Revert of Don't peek messages in the MessagePumpForUI class when we receive our kMsgHaveWork message.

base/message_loop/message_loop.cc

 // Copyright 2013 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_loop.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 622 matching lines @@
   // for some tasks.
   bool high_res = pending_high_res_tasks_ > 0;
   if (high_res != in_high_res_mode_) {
     in_high_res_mode_ = high_res;
     Time::ActivateHighResolutionTimer(in_high_res_mode_);
   }
 #endif
   return false;
 }
 
-TimeTicks MessageLoop::GetNewlyAddedTaskDelay() {
-  return incoming_task_queue_->GetNewlyAddedTaskDelay();
-}
-
 void MessageLoop::DeleteSoonInternal(const tracked_objects::Location& from_here,
                                      void(*deleter)(const void*),
                                      const void* object) {
   PostNonNestableTask(from_here, Bind(deleter, object));
 }
 
 void MessageLoop::ReleaseSoonInternal(
     const tracked_objects::Location& from_here,
     void(*releaser)(const void*),
     const void* object) {
@@ skipping 72 matching lines @@
       persistent,
       mode,
       controller,
       delegate);
 }
 #endif
 
 #endif  // !defined(OS_NACL_SFI)
 
 }  // namespace base