Be able to build cast_unittest and related targets in Chrome tree

media/cast/cast_sender_impl.cc

Index: media/cast/cast_sender_impl.cc
diff --git a/media/cast/cast_sender_impl.cc b/media/cast/cast_sender_impl.cc
index 76f2f997651453bae2f6f3c7e9df2dbc4d22dbc4..edefedd7f9ec9eafe9f0100cd1eaa445d877525b 100644
--- a/media/cast/cast_sender_impl.cc
+++ b/media/cast/cast_sender_impl.cc
@@ -55,7 +55,12 @@ class LocalFrameInput : public FrameInput {
             audio_frame, recorded_time, callback));
   }
 
+ protected:
+  virtual ~LocalFrameInput() {}
+
  private:
+  friend class base::RefCountedThreadSafe<LocalFrameInput>;
+
   scoped_refptr<CastThread> cast_thread_;
   base::WeakPtr<AudioSender> audio_sender_;
   base::WeakPtr<VideoSender> video_sender_;
@@ -100,8 +105,6 @@ class LocalCastSenderPacketReceiver : public PacketReceiver {
        ssrc_of_audio_sender_(ssrc_of_audio_sender),
        ssrc_of_video_sender_(ssrc_of_video_sender) {}
 
-  virtual ~LocalCastSenderPacketReceiver() {}
-
   virtual void ReceivedPacket(const uint8* packet,
                               int length,
                               const base::Closure callback) OVERRIDE {
@@ -132,7 +135,12 @@ class LocalCastSenderPacketReceiver : public PacketReceiver {
     }
   }
 
+ protected:
+  virtual ~LocalCastSenderPacketReceiver() {}
+
  private:
+  friend class base::RefCountedThreadSafe<LocalCastSenderPacketReceiver>;
+
   scoped_refptr<CastThread> cast_thread_;
   base::WeakPtr<AudioSender> audio_sender_;
   base::WeakPtr<VideoSender> video_sender_;
@@ -172,5 +180,13 @@ CastSenderImpl::CastSenderImpl(
 
 CastSenderImpl::~CastSenderImpl() {}
 
+scoped_refptr<FrameInput> CastSenderImpl::frame_input() {
+  return frame_input_;
+}
+
+scoped_refptr<PacketReceiver> CastSenderImpl::packet_receiver() {
+  return packet_receiver_;
+}
+
 }  // namespace cast
 }  // namespace media