Fix chromium-style warnings in webrtc/sound/.

webrtc/sound/alsasoundsystem.cc

 /*
  *  Copyright 2004 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 44 matching lines @@
       : SoundDeviceLocator(name, device_name) {
     // The ALSA descriptions have newlines in them, which won't show up in
     // a drop-down box. Replace them with hyphens.
     rtc::replace_substrs(kAlsaDescriptionSearch,
                                sizeof(kAlsaDescriptionSearch) - 1,
                                kAlsaDescriptionReplace,
                                sizeof(kAlsaDescriptionReplace) - 1,
                                &name_);
   }
 
-  virtual SoundDeviceLocator *Copy() const {
+  SoundDeviceLocator *Copy() const override {
     return new AlsaDeviceLocator(*this);
   }
 };
 
 // Functionality that is common to both AlsaInputStream and AlsaOutputStream.
 class AlsaStream {
  public:
   AlsaStream(AlsaSoundSystem *alsa,
              snd_pcm_t *handle,
              size_t frame_size,
@@ skipping 159 matching lines @@
   AlsaInputStream(AlsaSoundSystem *alsa,
                   snd_pcm_t *handle,
                   size_t frame_size,
                   int wait_timeout_ms,
                   int flags,
                   int freq)
       : stream_(alsa, handle, frame_size, wait_timeout_ms, flags, freq),
         buffer_size_(0) {
   }
 
-  virtual ~AlsaInputStream() {
+  ~AlsaInputStream() override {
     bool success = StopReading();
     // We need that to live.
     VERIFY(success);
   }
 
-  virtual bool StartReading() {
+  bool StartReading() override {
     return StartWork();
   }
 
-  virtual bool StopReading() {
+  bool StopReading() override {
     return StopWork();
   }
 
-  virtual bool GetVolume(int *volume) {
+  bool GetVolume(int *volume) override {
     // TODO: Implement this.
     return false;
   }
 
-  virtual bool SetVolume(int volume) {
+  bool SetVolume(int volume) override {
     // TODO: Implement this.
     return false;
   }
 
-  virtual bool Close() {
+  bool Close() override {
     return StopReading() && stream_.Close();
   }
 
-  virtual int LatencyUsecs() {
+  int LatencyUsecs() override {
     return stream_.CurrentDelayUsecs();
   }
 
  private:
   // Inherited from Worker.
-  virtual void OnStart() {
+  void OnStart() override {
     HaveWork();
   }
 
   // Inherited from Worker.
-  virtual void OnHaveWork() {
+  void OnHaveWork() override {
     // Block waiting for data.
     snd_pcm_uframes_t avail = stream_.Wait();
     if (avail > 0) {
       // Data is available.
       size_t size = avail * stream_.frame_size();
       if (size > buffer_size_) {
         // Must increase buffer size.
         buffer_.reset(new char[size]);
         buffer_size_ = size;
       }
@@ skipping 15 matching lines @@
                           read * stream_.frame_size(),
                           this);
       }
     }
     // Check for more data with no delay, after any pending messages are
     // dispatched.
     HaveWork();
   }
 
   // Inherited from Worker.
-  virtual void OnStop() {
+  void OnStop() override {
     // Nothing to do.
   }
 
   const char *GetError(int err) {
     return stream_.GetError(err);
   }
 
   AlsaStream stream_;
   rtc::scoped_ptr<char[]> buffer_;
   size_t buffer_size_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(AlsaInputStream);
 };
 
 // Implementation of an output stream. See soundoutputstreaminterface.h
 // regarding thread-safety.
-class AlsaOutputStream :
-    public SoundOutputStreamInterface,
-    private rtc::Worker {
+class AlsaOutputStream : public SoundOutputStreamInterface,
+                         private rtc::Worker {
  public:
   AlsaOutputStream(AlsaSoundSystem *alsa,
                    snd_pcm_t *handle,
                    size_t frame_size,
                    int wait_timeout_ms,
                    int flags,
                    int freq)
       : stream_(alsa, handle, frame_size, wait_timeout_ms, flags, freq) {
   }
 
-  virtual ~AlsaOutputStream() {
+  ~AlsaOutputStream() override {
     bool success = DisableBufferMonitoring();
     // We need that to live.
     VERIFY(success);
   }
 
-  virtual bool EnableBufferMonitoring() {
+  bool EnableBufferMonitoring() override {
     return StartWork();
   }
 
-  virtual bool DisableBufferMonitoring() {
+  bool DisableBufferMonitoring() override {
     return StopWork();
   }
 
-  virtual bool WriteSamples(const void *sample_data,
-                            size_t size) {
+  bool WriteSamples(const void *sample_data, size_t size) override {
     if (size % stream_.frame_size() != 0) {
       // No client of SoundSystemInterface does this, so let's not support it.
       // (If we wanted to support it, we'd basically just buffer the fractional
       // frame until we get more data.)
       ASSERT(false);
       LOG(LS_ERROR) << "Writes with fractional frames are not supported";
       return false;
     }
     snd_pcm_uframes_t frames = size / stream_.frame_size();
     snd_pcm_sframes_t written = stream_.symbol_table()->snd_pcm_writei()(
         stream_.handle(),
         sample_data,
         frames);
     if (written < 0) {
       LOG(LS_ERROR) << "snd_pcm_writei(): " << GetError(written);
       stream_.Recover(written);
       return false;
     } else if (static_cast<snd_pcm_uframes_t>(written) < frames) {
       // Shouldn't happen. Drop the rest of the data.
       LOG(LS_ERROR) << "Stream wrote only " << written << " of " << frames
                     << " frames!";
       return false;
     }
     return true;
   }
 
-  virtual bool GetVolume(int *volume) {
+  bool GetVolume(int *volume) override {
     // TODO: Implement this.
     return false;
   }
 
-  virtual bool SetVolume(int volume) {
+  bool SetVolume(int volume) override {
     // TODO: Implement this.
     return false;
   }
 
-  virtual bool Close() {
+  bool Close() override {
     return DisableBufferMonitoring() && stream_.Close();
   }
 
-  virtual int LatencyUsecs() {
+  int LatencyUsecs() override {
     return stream_.CurrentDelayUsecs();
   }
 
  private:
   // Inherited from Worker.
-  virtual void OnStart() {
+  void OnStart() override {
     HaveWork();
   }
 
   // Inherited from Worker.
-  virtual void OnHaveWork() {
+  void OnHaveWork() override {
     snd_pcm_uframes_t avail = stream_.Wait();
     if (avail > 0) {
       size_t space = avail * stream_.frame_size();
       SignalBufferSpace(space, this);
     }
     HaveWork();
   }
 
   // Inherited from Worker.
-  virtual void OnStop() {
+  void OnStop() override {
     // Nothing to do.
   }
 
   const char *GetError(int err) {
     return stream_.GetError(err);
   }
 
   AlsaStream stream_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(AlsaOutputStream);
@@ skipping 298 matching lines @@
   }
   return new AlsaInputStream(
       this, handle, frame_size, wait_timeout_ms, flags, freq);
 }
 
 inline const char *AlsaSoundSystem::GetError(int err) {
   return symbol_table_.snd_strerror()(err);
 }
 
 }  // namespace rtc