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

media/cast/logging/receiver_time_offset_estimator_impl_unittest.cc

 // 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.
 
 #include "media/cast/logging/receiver_time_offset_estimator_impl.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/memory/ref_counted.h"
@@ skipping 44 matching lines @@
 // Then the bound after all 3 events have arrived is [130-60=70, 130-20=110].
 TEST_F(ReceiverTimeOffsetEstimatorImplTest, EstimateOffset) {
   int64_t true_offset_ms = 100;
   receiver_clock_.Advance(base::TimeDelta::FromMilliseconds(true_offset_ms));
 
   base::TimeDelta lower_bound;
   base::TimeDelta upper_bound;
 
   EXPECT_FALSE(estimator_.GetReceiverOffsetBounds(&lower_bound, &upper_bound));
 
-  RtpTimestamp rtp_timestamp = 0;
+  const RtpTimeTicks rtp_timestamp;
   uint32_t frame_id = 0;
 
   AdvanceClocks(base::TimeDelta::FromMilliseconds(20));
 
   scoped_ptr<FrameEvent> encode_event(new FrameEvent());
   encode_event->timestamp = sender_clock_->NowTicks();
   encode_event->type = FRAME_ENCODED;
   encode_event->media_type = VIDEO_EVENT;
   encode_event->rtp_timestamp = rtp_timestamp;
   encode_event->frame_id = frame_id;
@@ skipping 62 matching lines @@
 // event C occurred before event B.
 TEST_F(ReceiverTimeOffsetEstimatorImplTest, EventCArrivesBeforeEventB) {
   int64_t true_offset_ms = 100;
   receiver_clock_.Advance(base::TimeDelta::FromMilliseconds(true_offset_ms));
 
   base::TimeDelta lower_bound;
   base::TimeDelta upper_bound;
 
   EXPECT_FALSE(estimator_.GetReceiverOffsetBounds(&lower_bound, &upper_bound));
 
-  RtpTimestamp rtp_timestamp = 0;
+  const RtpTimeTicks rtp_timestamp;
   uint32_t frame_id = 0;
 
   AdvanceClocks(base::TimeDelta::FromMilliseconds(20));
 
   scoped_ptr<FrameEvent> encode_event(new FrameEvent());
   encode_event->timestamp = sender_clock_->NowTicks();
   encode_event->type = FRAME_ENCODED;
   encode_event->media_type = VIDEO_EVENT;
   encode_event->rtp_timestamp = rtp_timestamp;
   encode_event->frame_id = frame_id;
@@ skipping 61 matching lines @@
   EXPECT_LE(true_offset_ms, upper_bound_ms);
 }
 
 TEST_F(ReceiverTimeOffsetEstimatorImplTest, MultipleIterations) {
   int64_t true_offset_ms = 100;
   receiver_clock_.Advance(base::TimeDelta::FromMilliseconds(true_offset_ms));
 
   base::TimeDelta lower_bound;
   base::TimeDelta upper_bound;
 
-  RtpTimestamp rtp_timestamp_a = 0;
+  const RtpTimeTicks rtp_timestamp_a;
   int frame_id_a = 0;
-  RtpTimestamp rtp_timestamp_b = 90;
+  const RtpTimeTicks rtp_timestamp_b =
+      rtp_timestamp_a + RtpTimeDelta::FromTicks(90);
   int frame_id_b = 1;
-  RtpTimestamp rtp_timestamp_c = 180;
+  const RtpTimeTicks rtp_timestamp_c =
+      rtp_timestamp_b + RtpTimeDelta::FromTicks(90);
   int frame_id_c = 2;
 
   // Frame 1 times: [20, 30+100, 60]
   // Frame 2 times: [30, 50+100, 55]
   // Frame 3 times: [77, 80+100, 110]
   // Bound should end up at [95, 103]
   // Events times in chronological order: 20, 30 x2, 50, 55, 60, 77, 80, 110
   AdvanceClocks(base::TimeDelta::FromMilliseconds(20));
   scoped_ptr<FrameEvent> encode_event(new FrameEvent());
   encode_event->timestamp = sender_clock_->NowTicks();
@@ skipping 149 matching lines @@
   int64_t lower_bound_ms = lower_bound.InMilliseconds();
   int64_t upper_bound_ms = upper_bound.InMilliseconds();
   EXPECT_GT(lower_bound_ms, 90);
   EXPECT_LE(lower_bound_ms, true_offset_ms);
   EXPECT_LT(upper_bound_ms, 150);
   EXPECT_GT(upper_bound_ms, true_offset_ms);
 }
 
 }  // namespace cast
 }  // namespace media