Reformat existing code. There should be no functional effects.

webrtc/modules/audio_processing/aec/echo_cancellation.c

 /*
  *  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.
  */
 
@@ skipping 252 matching lines @@
   }
 
   return 0;
 }
 
 // only buffer L band for farend
 int32_t WebRtcAec_BufferFarend(void* aecInst,
                                const float* farend,
                                int16_t nrOfSamples) {
   Aec* aecpc = aecInst;
-  int newNrOfSamples = (int)nrOfSamples;
+  int newNrOfSamples = nrOfSamples;
   float new_farend[MAX_RESAMP_LEN];
   const float* farend_ptr = farend;
 
   if (farend == NULL) {
     aecpc->lastError = AEC_NULL_POINTER_ERROR;
     return -1;
   }
 
   if (aecpc->initFlag != initCheck) {
     aecpc->lastError = AEC_UNINITIALIZED_ERROR;
@@ skipping 630 matching lines @@
     }
   } else {
     self->timeForDelayChange = 0;
   }
   self->lastDelayDiff = delay_difference;
 
   if (self->timeForDelayChange > 25) {
     self->knownDelay = WEBRTC_SPL_MAX((int)self->filtDelay - 256, 0);
   }
 }