Fix warnings, simplify ADM.

webrtc/modules/audio_device/include/fake_audio_device.h

 /*
  *  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.
  */
 
+#ifndef WEBRTC_MODULES_AUDIO_DEVICE_INCLUDE_FAKE_AUDIO_DEVICE_H_
+#define WEBRTC_MODULES_AUDIO_DEVICE_INCLUDE_FAKE_AUDIO_DEVICE_H_
+
 #include "webrtc/modules/audio_device/include/audio_device.h"
 
 namespace webrtc {
 
 class FakeAudioDeviceModule : public AudioDeviceModule {
  public:
   FakeAudioDeviceModule() {}
   virtual ~FakeAudioDeviceModule() {}
   virtual int32_t AddRef() const { return 0; }
   virtual int32_t Release() const { return 0; }
@@ skipping 118 matching lines @@
   }
   virtual int32_t SetPlayoutSampleRate(const uint32_t samplesPerSec) {
     return 0;
   }
   virtual int32_t PlayoutSampleRate(uint32_t* samplesPerSec) const { return 0; }
   virtual int32_t ResetAudioDevice() { return 0; }
   virtual int32_t SetLoudspeakerStatus(bool enable) { return 0; }
   virtual int32_t GetLoudspeakerStatus(bool* enabled) const { return 0; }
   virtual bool BuiltInAECIsAvailable() const { return false; }
   virtual int32_t EnableBuiltInAEC(bool enable) { return -1; }
-  virtual bool BuiltInAECIsEnabled() const { return false; }
   virtual bool BuiltInAGCIsAvailable() const { return false; }
   virtual int32_t EnableBuiltInAGC(bool enable) { return -1; }
   virtual bool BuiltInNSIsAvailable() const { return false; }
   virtual int32_t EnableBuiltInNS(bool enable) { return -1; }
+
+#if defined(WEBRTC_IOS)
+  virtual int GetPlayoutAudioParameters(AudioParameters* params) const {
+    return -1;
+  }
+  virtual int GetRecordAudioParameters(AudioParameters* params) const {
+    return -1;
+  }
+#endif  // WEBRTC_IOS
 };
 
 }  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_AUDIO_DEVICE_INCLUDE_FAKE_AUDIO_DEVICE_H_