Prevent TimeUntilNextProcess log spam.

webrtc/modules/utility/source/process_thread_impl.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include "webrtc/modules/utility/source/process_thread_impl.h"
 
 #include "webrtc/base/checks.h"
 #include "webrtc/modules/interface/module.h"
 #include "webrtc/system_wrappers/interface/logging.h"
 #include "webrtc/system_wrappers/interface/tick_util.h"
 
 namespace webrtc {
 namespace {
 
 // We use this constant internally to signal that a module has requested
 // a callback right away.  When this is set, no call to TimeUntilNextProcess
 // should be made, but Process() should be called directly.
 const int64_t kCallProcessImmediately = -1;
 
 int64_t GetNextCallbackTime(Module* module, int64_t time_now) {
   int64_t interval = module->TimeUntilNextProcess();
-  // Currently some implementations erroneously return error codes from
-  // TimeUntilNextProcess(). So, as is, we correct that and log an error.
   if (interval < 0) {
-    LOG(LS_ERROR) << "TimeUntilNextProcess returned an invalid value "
-                  << interval;
-    interval = 0;
+    // Falling behind, we should call the callback now.
+    return time_now;
   }
   return time_now + interval;
 }
 }
 
 ProcessThread::~ProcessThread() {}
 
 // static
 rtc::scoped_ptr<ProcessThread> ProcessThread::Create() {
   return rtc::scoped_ptr<ProcessThread>(new ProcessThreadImpl()).Pass();
@@ skipping 184 matching lines @@
     }
   }
 
   int64_t time_to_wait = next_checkpoint - TickTime::MillisecondTimestamp();
   if (time_to_wait > 0)
     wake_up_->Wait(static_cast<unsigned long>(time_to_wait));
 
   return true;
 }
 }  // namespace webrtc