audio_processing: Create now returns a pointer to the object

webrtc/modules/audio_processing/echo_cancellation_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.
  */
 
@@ skipping 319 matching lines @@
 void EchoCancellationImpl::SetExtraOptions(const Config& config) {
   // Both ExtendedFilter and DelayCorrection are diabled by default. If any one
   // of them is true, then the extended filter mode is enabled.
   extended_filter_enabled_ = config.Get<ExtendedFilter>().enabled ||
                              config.Get<DelayCorrection>().enabled;
   reported_delay_enabled_ = config.Get<ReportedDelay>().enabled;
   Configure();
 }
 
 void* EchoCancellationImpl::CreateHandle() const {
-  Handle* handle = NULL;
-  if (WebRtcAec_Create(&handle) != apm_->kNoError) {
-    handle = NULL;
-  } else {
-    assert(handle != NULL);
-  }
-
-  return handle;
+  return WebRtcAec_Create();
 }
 
 void EchoCancellationImpl::DestroyHandle(void* handle) const {
   assert(handle != NULL);
   WebRtcAec_Free(static_cast<Handle*>(handle));
 }
 
 int EchoCancellationImpl::InitializeHandle(void* handle) const {
   assert(handle != NULL);
   // TODO(ajm): Drift compensation is disabled in practice. If restored, it
@@ skipping 23 matching lines @@
 int EchoCancellationImpl::num_handles_required() const {
   return apm_->num_output_channels() *
          apm_->num_reverse_channels();
 }
 
 int EchoCancellationImpl::GetHandleError(void* handle) const {
   assert(handle != NULL);
   return MapError(WebRtcAec_get_error_code(static_cast<Handle*>(handle)));
 }
 }  // namespace webrtc