Removes unused APIs from the ADM (part II)

webrtc/modules/audio_device/include/audio_device.h

Index: webrtc/modules/audio_device/include/audio_device.h
diff --git a/webrtc/modules/audio_device/include/audio_device.h b/webrtc/modules/audio_device/include/audio_device.h
index a1276d939203fd238a5c39bf70ffe1e2b4eb6c0b..1eedf1eef201584982fe339d2ca9271e84a9b8da 100644
--- a/webrtc/modules/audio_device/include/audio_device.h
+++ b/webrtc/modules/audio_device/include/audio_device.h
@@ -40,6 +40,8 @@ class AudioDeviceModule : public RefCountedModule {
     kDefaultDevice = -2
   };
 
+  // Deprecated.
+  // TODO(henrika): to be removed.
   enum BufferType {
     kFixedBufferSize  = 0,
     kAdaptiveBufferSize = 1
@@ -127,7 +129,9 @@ class AudioDeviceModule : public RefCountedModule {
   virtual int32_t SpeakerVolume(uint32_t* volume) const = 0;
   virtual int32_t MaxSpeakerVolume(uint32_t* maxVolume) const = 0;
   virtual int32_t MinSpeakerVolume(uint32_t* minVolume) const = 0;
-  virtual int32_t SpeakerVolumeStepSize(uint16_t* stepSize) const = 0;
+  // Deprecated.
+  // TODO(henrika): to be removed.
+  virtual int32_t SpeakerVolumeStepSize(uint16_t* stepSize) const { return -1; }
 
   // Microphone volume controls
   virtual int32_t MicrophoneVolumeIsAvailable(bool* available) = 0;
@@ -135,7 +139,11 @@ class AudioDeviceModule : public RefCountedModule {
   virtual int32_t MicrophoneVolume(uint32_t* volume) const = 0;
   virtual int32_t MaxMicrophoneVolume(uint32_t* maxVolume) const = 0;
   virtual int32_t MinMicrophoneVolume(uint32_t* minVolume) const = 0;
-  virtual int32_t MicrophoneVolumeStepSize(uint16_t* stepSize) const = 0;
+  // Deprecated.
+  // TODO(henrika): to be removed.
+  virtual int32_t MicrophoneVolumeStepSize(uint16_t* stepSize) const {
+    return -1;
+  }
 
   // Speaker mute control
   virtual int32_t SpeakerMuteIsAvailable(bool* available) = 0;
@@ -147,10 +155,11 @@ class AudioDeviceModule : public RefCountedModule {
   virtual int32_t SetMicrophoneMute(bool enable) = 0;
   virtual int32_t MicrophoneMute(bool* enabled) const = 0;
 
-  // Microphone boost control
-  virtual int32_t MicrophoneBoostIsAvailable(bool* available) = 0;
-  virtual int32_t SetMicrophoneBoost(bool enable) = 0;
-  virtual int32_t MicrophoneBoost(bool* enabled) const = 0;
+  // Deprecated.
+  // TODO(henrika): to be removed.
+  virtual int32_t MicrophoneBoostIsAvailable(bool* available) { return -1; }
+  virtual int32_t SetMicrophoneBoost(bool enable) { return -1; }
+  virtual int32_t MicrophoneBoost(bool* enabled) const { return -1; }
 
   // Stereo support
   virtual int32_t StereoPlayoutIsAvailable(bool* available) const = 0;
@@ -162,23 +171,29 @@ class AudioDeviceModule : public RefCountedModule {
   virtual int32_t SetRecordingChannel(const ChannelType channel) = 0;
   virtual int32_t RecordingChannel(ChannelType* channel) const = 0;
 
-  // Delay information and control
+  // Deprecated.
+  // TODO(henrika): to be removed.
   virtual int32_t SetPlayoutBuffer(const BufferType type,
-                                   uint16_t sizeMS = 0) = 0;
-  virtual int32_t PlayoutBuffer(BufferType* type, uint16_t* sizeMS) const = 0;
+                                   uint16_t sizeMS = 0) { return -1; }
+  virtual int32_t PlayoutBuffer(BufferType* type, uint16_t* sizeMS) const {
+    return -1;
+  }
+  // Delay information and control
   virtual int32_t PlayoutDelay(uint16_t* delayMS) const = 0;
   virtual int32_t RecordingDelay(uint16_t* delayMS) const = 0;
 
-  // CPU load
-  virtual int32_t CPULoad(uint16_t* load) const = 0;
+  // Deprecated.
+  // TODO(henrika): to be removed.
+  virtual int32_t CPULoad(uint16_t* load) const { return -1; }
 
-  // Recording of raw PCM data
+  // Deprecated.
+  // TODO(henrika): to be removed.
   virtual int32_t StartRawOutputFileRecording(
-      const char pcmFileNameUTF8[kAdmMaxFileNameSize]) = 0;
-  virtual int32_t StopRawOutputFileRecording() = 0;
+      const char pcmFileNameUTF8[kAdmMaxFileNameSize]) { return -1; }
+  virtual int32_t StopRawOutputFileRecording() { return -1; }
   virtual int32_t StartRawInputFileRecording(
-      const char pcmFileNameUTF8[kAdmMaxFileNameSize]) = 0;
-  virtual int32_t StopRawInputFileRecording() = 0;
+      const char pcmFileNameUTF8[kAdmMaxFileNameSize]) { return -1; }
+  virtual int32_t StopRawInputFileRecording() { return -1; }
 
   // Native sample rate controls (samples/sec)
   virtual int32_t SetRecordingSampleRate(const uint32_t samplesPerSec) = 0;
@@ -186,8 +201,11 @@ class AudioDeviceModule : public RefCountedModule {
   virtual int32_t SetPlayoutSampleRate(const uint32_t samplesPerSec) = 0;
   virtual int32_t PlayoutSampleRate(uint32_t* samplesPerSec) const = 0;
 
+  // Deprecated.
+  // TODO(henrika): to be removed.
+  virtual int32_t ResetAudioDevice() { return -1; }
+
   // Mobile device specific functions
-  virtual int32_t ResetAudioDevice() = 0;
   virtual int32_t SetLoudspeakerStatus(bool enable) = 0;
   virtual int32_t GetLoudspeakerStatus(bool* enabled) const = 0;