Removes unused APIs from the ADM (part II)

webrtc/modules/audio_device/linux/audio_device_alsa_linux.h

Index: webrtc/modules/audio_device/linux/audio_device_alsa_linux.h
diff --git a/webrtc/modules/audio_device/linux/audio_device_alsa_linux.h b/webrtc/modules/audio_device/linux/audio_device_alsa_linux.h
index f7fb9a90adbe9f72aa57982fc01c1e993c4e0c5d..264846544cf656345465edcce296ef186748da4b 100644
--- a/webrtc/modules/audio_device/linux/audio_device_alsa_linux.h
+++ b/webrtc/modules/audio_device/linux/audio_device_alsa_linux.h
@@ -95,7 +95,6 @@ public:
     int32_t SpeakerVolume(uint32_t& volume) const override;
     int32_t MaxSpeakerVolume(uint32_t& maxVolume) const override;
     int32_t MinSpeakerVolume(uint32_t& minVolume) const override;
-    int32_t SpeakerVolumeStepSize(uint16_t& stepSize) const override;
 
     // Microphone volume controls
     int32_t MicrophoneVolumeIsAvailable(bool& available) override;
@@ -103,7 +102,6 @@ public:
     int32_t MicrophoneVolume(uint32_t& volume) const override;
     int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const override;
     int32_t MinMicrophoneVolume(uint32_t& minVolume) const override;
-    int32_t MicrophoneVolumeStepSize(uint16_t& stepSize) const override;
 
     // Speaker mute control
     int32_t SpeakerMuteIsAvailable(bool& available) override;
@@ -115,11 +113,6 @@ public:
     int32_t SetMicrophoneMute(bool enable) override;
     int32_t MicrophoneMute(bool& enabled) const override;
 
-    // Microphone boost control
-    int32_t MicrophoneBoostIsAvailable(bool& available) override;
-    int32_t SetMicrophoneBoost(bool enable) override;
-    int32_t MicrophoneBoost(bool& enabled) const override;
-
     // Stereo support
     int32_t StereoPlayoutIsAvailable(bool& available) override;
     int32_t SetStereoPlayout(bool enable) override;
@@ -129,26 +122,19 @@ public:
     int32_t StereoRecording(bool& enabled) const override;
 
     // Delay information and control
-    int32_t SetPlayoutBuffer(const AudioDeviceModule::BufferType type,
-                             uint16_t sizeMS) override;
-    int32_t PlayoutBuffer(AudioDeviceModule::BufferType& type,
-                          uint16_t& sizeMS) const override;
     int32_t PlayoutDelay(uint16_t& delayMS) const override;
     int32_t RecordingDelay(uint16_t& delayMS) const override;
 
-    // CPU load
-    int32_t CPULoad(uint16_t& load) const override;
-
- bool PlayoutWarning() const override;
- bool PlayoutError() const override;
- bool RecordingWarning() const override;
- bool RecordingError() const override;
- void ClearPlayoutWarning() override;
- void ClearPlayoutError() override;
- void ClearRecordingWarning() override;
- void ClearRecordingError() override;
+    bool PlayoutWarning() const override;
+    bool PlayoutError() const override;
+    bool RecordingWarning() const override;
+    bool RecordingError() const override;
+    void ClearPlayoutWarning() override;
+    void ClearPlayoutError() override;
+    void ClearRecordingWarning() override;
+    void ClearRecordingError() override;
 
- void AttachAudioBuffer(AudioDeviceBuffer* audioBuffer) override;
+    void AttachAudioBuffer(AudioDeviceBuffer* audioBuffer) override;
 
 private:
     int32_t GetDevicesInfo(const int32_t function,
@@ -210,8 +196,6 @@ private:
     uint32_t _recordingFramesLeft;
     uint32_t _playoutFramesLeft;
 
-    AudioDeviceModule::BufferType _playBufType;
-
     bool _initialized;
     bool _recording;
     bool _playing;
@@ -227,9 +211,6 @@ private:
     uint16_t _recWarning;
     uint16_t _recError;
 
-    uint16_t _playBufDelay;                 // playback delay
-    uint16_t _playBufDelayFixed;            // fixed playback delay
-
     char _oldKeyState[32];
 #if defined(USE_X11)
     Display* _XDisplay;