Standardize usage of virtual/override/final in content/renderer/

content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc

Index: content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc
diff --git a/content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc b/content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc
index 7d7b49fbba44eacb441eada0c927ed76c387ab9a..c219537ae123e23659316f8277f8669a7622a38f 100644
--- a/content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc
+++ b/content/renderer/media/webrtc/mock_peer_connection_dependency_factory.cc
@@ -131,8 +131,7 @@ class MockRtcVideoCapturer : public WebRtcVideoCapturerAdapter {
         height_(0) {
   }
 
-  virtual void OnFrameCaptured(
-      const scoped_refptr<media::VideoFrame>& frame) override {
+  void OnFrameCaptured(const scoped_refptr<media::VideoFrame>& frame) override {
     ++number_of_capturered_frames_;
     width_ = frame->visible_rect().width();
     height_ = frame->visible_rect().height();
@@ -352,41 +351,39 @@ class MockSessionDescription : public SessionDescriptionInterface {
       : type_(type),
         sdp_(sdp) {
   }
-  virtual ~MockSessionDescription() {}
-  virtual cricket::SessionDescription* description() override {
+  ~MockSessionDescription() override {}
+  cricket::SessionDescription* description() override {
     NOTIMPLEMENTED();
     return NULL;
   }
-  virtual const cricket::SessionDescription* description() const override {
+  const cricket::SessionDescription* description() const override {
     NOTIMPLEMENTED();
     return NULL;
   }
-  virtual std::string session_id() const override {
+  std::string session_id() const override {
     NOTIMPLEMENTED();
     return std::string();
   }
-  virtual std::string session_version() const override {
+  std::string session_version() const override {
     NOTIMPLEMENTED();
     return std::string();
   }
-  virtual std::string type() const override {
-    return type_;
-  }
-  virtual bool AddCandidate(const IceCandidateInterface* candidate) override {
+  std::string type() const override { return type_; }
+  bool AddCandidate(const IceCandidateInterface* candidate) override {
     NOTIMPLEMENTED();
     return false;
   }
-  virtual size_t number_of_mediasections() const override {
+  size_t number_of_mediasections() const override {
     NOTIMPLEMENTED();
     return 0;
   }
-  virtual const IceCandidateCollection* candidates(
+  const IceCandidateCollection* candidates(
       size_t mediasection_index) const override {
     NOTIMPLEMENTED();
     return NULL;
   }
 
-  virtual bool ToString(std::string* out) const override {
+  bool ToString(std::string* out) const override {
     *out = sdp_;
     return true;
   }
@@ -407,17 +404,11 @@ class MockIceCandidate : public IceCandidateInterface {
     // Assign an valid address to |candidate_| to pass assert in code.
     candidate_.set_address(rtc::SocketAddress("127.0.0.1", 5000));
   }
-  virtual ~MockIceCandidate() {}
-  virtual std::string sdp_mid() const override {
-    return sdp_mid_;
-  }
-  virtual int sdp_mline_index() const override {
-    return sdp_mline_index_;
-  }
-  virtual const cricket::Candidate& candidate() const override {
-    return candidate_;
-  }
-  virtual bool ToString(std::string* out) const override {
+  ~MockIceCandidate() override {}
+  std::string sdp_mid() const override { return sdp_mid_; }
+  int sdp_mline_index() const override { return sdp_mline_index_; }
+  const cricket::Candidate& candidate() const override { return candidate_; }
+  bool ToString(std::string* out) const override {
     *out = sdp_;
     return true;
   }