Modifies invalid DCHECK in AudioRecordJni::OnCacheDirectBufferAddress()

webrtc/modules/audio_device/android/audio_record_jni.cc

 /*
  *  Copyright (c) 2013 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 157 matching lines @@
   if (!j_audio_record_->StopRecording()) {
     ALOGE("StopRecording failed!");
     return -1;
   }
   // If we don't detach here, we will hit a RTC_DCHECK in OnDataIsRecorded()
   // next time StartRecording() is called since it will create a new Java
   // thread.
   thread_checker_java_.DetachFromThread();
   initialized_ = false;
   recording_ = false;
+  direct_buffer_address_= nullptr;
   return 0;
 }
 
 void AudioRecordJni::AttachAudioBuffer(AudioDeviceBuffer* audioBuffer) {
   ALOGD("AttachAudioBuffer");
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   audio_device_buffer_ = audioBuffer;
   const int sample_rate_hz = audio_parameters_.sample_rate();
   ALOGD("SetRecordingSampleRate(%d)", sample_rate_hz);
   audio_device_buffer_->SetRecordingSampleRate(sample_rate_hz);
@@ skipping 65 matching lines @@
   // of |playDelayMs| and |recDelayMs|, hence the distributions does not matter.
   audio_device_buffer_->SetVQEData(total_delay_in_milliseconds_,
                                    0,   // recDelayMs
                                    0);  // clockDrift
   if (audio_device_buffer_->DeliverRecordedData() == -1) {
     ALOGE("AudioDeviceBuffer::DeliverRecordedData failed!");
   }
 }
 
 }  // namespace webrtc