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

media/cast/net/rtcp/receiver_rtcp_event_subscriber.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_CAST_RTCP_RECEIVER_RTCP_EVENT_SUBSCRIBER_H_
 #define MEDIA_CAST_RTCP_RECEIVER_RTCP_EVENT_SUBSCRIBER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 17 matching lines @@
 // - Only processes raw event types that are relevant for sending from cast
 //   receiver to cast sender via RTCP.
 // - Captures information to be sent over to RTCP from raw event logs into the
 //   more compact RtcpEvent struct.
 // - Orders events by RTP timestamp with a multimap.
 // - Internally, the map is capped at a maximum size configurable by the caller.
 //   The subscriber only keeps the most recent events (determined by RTP
 //   timestamp) up to the size limit.
 class ReceiverRtcpEventSubscriber : public RawEventSubscriber {
  public:
-  typedef std::pair<RtpTimestamp, RtcpEvent> RtcpEventPair;
-  typedef std::vector<std::pair<RtpTimestamp, RtcpEvent> > RtcpEvents;
+  typedef std::pair<RtpTimeTicks, RtcpEvent> RtcpEventPair;
+  typedef std::vector<std::pair<RtpTimeTicks, RtcpEvent>> RtcpEvents;
 
   // |max_size_to_retain|: The object will keep up to |max_size_to_retain|
   // events
   // in the map. Once threshold has been reached, an event with the smallest
   // RTP timestamp will be removed.
   // |type|: Determines whether the subscriber will process only audio or video
   // events.
   ReceiverRtcpEventSubscriber(const size_t max_size_to_retain,
       EventMediaType type);
 
@@ skipping 47 matching lines @@
   // Ensures methods are only called on the main thread.
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(ReceiverRtcpEventSubscriber);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_RTCP_RECEIVER_RTCP_EVENT_SUBSCRIBER_H_