Remove AudioDeviceObserver and make ADM not inherit from the Module interface.

call/call_unittest.cc

 /*
  *  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 414 matching lines @@
   EXPECT_CALL(call.mock_cc(), SetBweBitrates(1, 2, 3)).Times(1);
   call->SetBitrateConfig(bitrate_config);
 
   bitrate_config.start_bitrate_bps = -1;
   call->SetBitrateConfig(bitrate_config);
 }
 
 TEST(CallTest, RecreatingAudioStreamWithSameSsrcReusesRtpState) {
   constexpr uint32_t kSSRC = 12345;
   testing::NiceMock<test::MockAudioDeviceModule> mock_adm;
-  // Reply with a 10ms timer every time TimeUntilNextProcess is called to
-  // avoid entering a tight loop on the process thread.
-  EXPECT_CALL(mock_adm, TimeUntilNextProcess())
-       .WillRepeatedly(testing::Return(10));
   rtc::scoped_refptr<test::MockAudioMixer> mock_mixer(
       new rtc::RefCountedObject<test::MockAudioMixer>);
 
   // There's similar functionality in cricket::VoEWrapper but it's not reachable
   // from here. Since we're working on removing VoE interfaces, I doubt it's
   // worth making VoEWrapper more easily available.
   struct ScopedVoiceEngine {
     ScopedVoiceEngine()
         : voe(VoiceEngine::Create()),
           base(VoEBase::GetInterface(voe)) {}
@@ skipping 260 matching lines @@
   mask.min_bitrate_bps = rtc::Optional<int>(2000);
   EXPECT_CALL(call.mock_cc(), SetBweBitrates(1000, -1, 1000));
   call->SetBitrateConfigMask(mask);
 
   // Set min to 3000; the clamped value stays the same so nothing happens.
   mask.min_bitrate_bps = rtc::Optional<int>(3000);
   call->SetBitrateConfigMask(mask);
 }
 
 }  // namespace webrtc