Standardize usage of virtual/override/final in media/

media/cast/net/cast_transport_sender_impl_unittest.cc

Index: media/cast/net/cast_transport_sender_impl_unittest.cc
diff --git a/media/cast/net/cast_transport_sender_impl_unittest.cc b/media/cast/net/cast_transport_sender_impl_unittest.cc
index 3df4b608c339548a9f2aee3c28f4092c2d134c63..83306274126b4dd2a2aba05a4a752b60ab1baae6 100644
--- a/media/cast/net/cast_transport_sender_impl_unittest.cc
+++ b/media/cast/net/cast_transport_sender_impl_unittest.cc
@@ -31,7 +31,7 @@ class FakePacketSender : public PacketSender {
   FakePacketSender()
       : paused_(false), packets_sent_(0), bytes_sent_(0) {}
 
-  virtual bool SendPacket(PacketRef packet, const base::Closure& cb) override {
+  bool SendPacket(PacketRef packet, const base::Closure& cb) override {
     if (paused_) {
       stored_packet_ = packet;
       callback_ = cb;
@@ -42,9 +42,7 @@ class FakePacketSender : public PacketSender {
     return true;
   }
 
-  virtual int64 GetBytesSent() override {
-    return bytes_sent_;
-  }
+  int64 GetBytesSent() override { return bytes_sent_; }
 
   void SetPaused(bool paused) {
     paused_ = paused;