Fix chromium-style warnings in webrtc/sound/.

webrtc/sound/nullsoundsystem.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.
  */
 
 #include "webrtc/sound/nullsoundsystem.h"
 
 #include "webrtc/sound/sounddevicelocator.h"
 #include "webrtc/sound/soundinputstreaminterface.h"
 #include "webrtc/sound/soundoutputstreaminterface.h"
 #include "webrtc/base/logging.h"
 
 namespace rtc {
-
 class Thread;
-
 }
 
 namespace rtc {
 
 // Name used for the single device and the sound system itself.
 static const char kNullName[] = "null";
 
 class NullSoundDeviceLocator : public SoundDeviceLocator {
  public:
   NullSoundDeviceLocator() : SoundDeviceLocator(kNullName, kNullName) {}
 
-  virtual SoundDeviceLocator *Copy() const {
+  SoundDeviceLocator *Copy() const override {
     return new NullSoundDeviceLocator();
   }
 };
 
 class NullSoundInputStream : public SoundInputStreamInterface {
  public:
-  virtual bool StartReading() {
+  bool StartReading() override {
     return true;
   }
 
-  virtual bool StopReading() {
+  bool StopReading() override {
     return true;
   }
 
-  virtual bool GetVolume(int *volume) {
+  bool GetVolume(int *volume) override {
     *volume = SoundSystemInterface::kMinVolume;
     return true;
   }
 
-  virtual bool SetVolume(int volume) {
+  bool SetVolume(int volume) override {
     return false;
   }
 
-  virtual bool Close() {
+  bool Close() override {
     return true;
   }
 
-  virtual int LatencyUsecs() {
+  int LatencyUsecs() override {
     return 0;
   }
 };
 
 class NullSoundOutputStream : public SoundOutputStreamInterface {
  public:
-  virtual bool EnableBufferMonitoring() {
+  bool EnableBufferMonitoring() override {
     return true;
   }
 
-  virtual bool DisableBufferMonitoring() {
+  bool DisableBufferMonitoring() override {
     return true;
   }
 
-  virtual bool WriteSamples(const void *sample_data,
-                            size_t size) {
+  bool WriteSamples(const void *sample_data, size_t size) override {
     LOG(LS_VERBOSE) << "Got " << size << " bytes of playback samples";
     return true;
   }
 
-  virtual bool GetVolume(int *volume) {
+  bool GetVolume(int *volume) override {
     *volume = SoundSystemInterface::kMinVolume;
     return true;
   }
 
-  virtual bool SetVolume(int volume) {
+  bool SetVolume(int volume) override {
     return false;
   }
 
-  virtual bool Close() {
+  bool Close() override {
     return true;
   }
 
-  virtual int LatencyUsecs() {
+  int LatencyUsecs() override {
     return 0;
   }
 };
 
 NullSoundSystem::~NullSoundSystem() {
 }
 
 bool NullSoundSystem::Init() {
   return true;
 }
@@ skipping 42 matching lines @@
       const SoundDeviceLocator *device,
       const OpenParams &params) {
   return new NullSoundInputStream();
 }
 
 const char *NullSoundSystem::GetName() const {
   return kNullName;
 }
 
 }  // namespace rtc