Fixed time moving backwards in the AudioCodingModule.

webrtc/base/checks.h

 /*
  *  Copyright 2006 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.
  */
 
@@ skipping 202 matching lines @@
  private:
   void Init(const char* file, int line);
 
   std::ostringstream stream_;
 };
 
 // Performs the integer division a/b and returns the result. CHECKs that the
 // remainder is zero.
 template <typename T>
 inline T CheckedDivExact(T a, T b) {
-  RTC_CHECK_EQ(a % b, static_cast<T>(0));
+  RTC_CHECK_EQ(a % b, static_cast<T>(0)) << a << " is not evenly divisible by "
+                                         << b;
   return a / b;
 }
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_CHECKS_H_