Replace uses of raw uint32's with a type-checked RtpTimeTicks data type.

chrome/renderer/media/cast_transport_sender_ipc.h

Index: chrome/renderer/media/cast_transport_sender_ipc.h
diff --git a/chrome/renderer/media/cast_transport_sender_ipc.h b/chrome/renderer/media/cast_transport_sender_ipc.h
index 683a4584db2291ea48943754637fc1bad4275baa..af66c03609469c8190a812b3a81b6d2ab4119d2e 100644
--- a/chrome/renderer/media/cast_transport_sender_ipc.h
+++ b/chrome/renderer/media/cast_transport_sender_ipc.h
@@ -44,9 +44,10 @@ class CastTransportSenderIPC
       const media::cast::RtcpRttCallback& rtt_cb) override;
   void InsertFrame(uint32_t ssrc,
                    const media::cast::EncodedFrame& frame) override;
-  void SendSenderReport(uint32_t ssrc,
-                        base::TimeTicks current_time,
-                        uint32_t current_time_as_rtp_timestamp) override;
+  void SendSenderReport(
+      uint32_t ssrc,
+      base::TimeTicks current_time,
+      media::cast::RtpTimeTicks current_time_as_rtp_timestamp) override;
   void CancelSendingFrames(uint32_t ssrc,
                            const std::vector<uint32_t>& frame_ids) override;
   void ResendFrameForKickstart(uint32_t ssrc, uint32_t frame_id) override;