Move message_pump to base/message_loop.

base/message_pump_default.cc

-// Copyright (c) 2006-2008 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_pump_default.h"
-
-#include "base/logging.h"
-#include "base/threading/thread_restrictions.h"
-
-#if defined(OS_MACOSX)
-#include "base/mac/scoped_nsautorelease_pool.h"
-#endif
-
-namespace base {
-
-MessagePumpDefault::MessagePumpDefault()
-    : keep_running_(true),
-      event_(false, false) {
-}
-
-void MessagePumpDefault::Run(Delegate* delegate) {
-  DCHECK(keep_running_) << "Quit must have been called outside of Run!";
-
-  for (;;) {
-#if defined(OS_MACOSX)
-    mac::ScopedNSAutoreleasePool autorelease_pool;
-#endif
-
-    bool did_work = delegate->DoWork();
-    if (!keep_running_)
-      break;
-
-    did_work |= delegate->DoDelayedWork(&delayed_work_time_);
-    if (!keep_running_)
-      break;
-
-    if (did_work)
-      continue;
-
-    did_work = delegate->DoIdleWork();
-    if (!keep_running_)
-      break;
-
-    if (did_work)
-      continue;
-
-    base::ThreadRestrictions::ScopedAllowWait allow_wait;
-    if (delayed_work_time_.is_null()) {
-      event_.Wait();
-    } else {
-      TimeDelta delay = delayed_work_time_ - TimeTicks::Now();
-      if (delay > TimeDelta()) {
-        event_.TimedWait(delay);
-      } else {
-        // It looks like delayed_work_time_ indicates a time in the past, so we
-        // need to call DoDelayedWork now.
-        delayed_work_time_ = TimeTicks();
-      }
-    }
-    // Since event_ is auto-reset, we don't need to do anything special here
-    // other than service each delegate method.
-  }
-
-  keep_running_ = true;
-}
-
-void MessagePumpDefault::Quit() {
-  keep_running_ = false;
-}
-
-void MessagePumpDefault::ScheduleWork() {
-  // Since this can be called on any thread, we need to ensure that our Run
-  // loop wakes up.
-  event_.Signal();
-}
-
-void MessagePumpDefault::ScheduleDelayedWork(
-    const TimeTicks& delayed_work_time) {
-  // We know that we can't be blocked on Wait right now since this method can
-  // only be called on the same thread as Run, so we only need to update our
-  // record of how long to sleep when we do sleep.
-  delayed_work_time_ = delayed_work_time;
-}
-
-}  // namespace base