Provide a default return value for mock_audio_device_.TimeUntilNextProcess.

webrtc/test/mock_voice_engine.h

 /*
  *  Copyright (c) 2015 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 37 matching lines @@
     // decoder factory as the one passed in when creating an AudioReceiveStream.
     ON_CALL(*this, ChannelProxyFactory(testing::_))
         .WillByDefault(testing::Invoke([this](int channel_id) {
           auto* proxy =
               new testing::NiceMock<webrtc::test::MockVoEChannelProxy>();
           EXPECT_CALL(*proxy, GetAudioDecoderFactory())
               .WillRepeatedly(testing::ReturnRef(decoder_factory_));
           return proxy;
         }));
 
+    ON_CALL(mock_audio_device_, TimeUntilNextProcess())
+        .WillByDefault(testing::Return(1000));
     ON_CALL(*this, audio_device_module())
         .WillByDefault(testing::Return(&mock_audio_device_));
     ON_CALL(*this, audio_processing())
         .WillByDefault(testing::Return(&mock_audio_processing_));
     ON_CALL(*this, audio_transport())
         .WillByDefault(testing::Return(&mock_audio_transport_));
   }
   virtual ~MockVoiceEngine() /* override */ {
     // Decrease ref count before base class d-tor is called; otherwise it will
     // trigger an assertion.
@@ skipping 196 matching lines @@
   rtc::scoped_refptr<AudioDecoderFactory> decoder_factory_;
 
   MockAudioDeviceModule mock_audio_device_;
   MockAudioProcessing mock_audio_processing_;
   MockAudioTransport mock_audio_transport_;
 };
 }  // namespace test
 }  // namespace webrtc
 
 #endif  // WEBRTC_AUDIO_MOCK_VOICE_ENGINE_H_