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

media/cast/sender/video_encoder_unittest.cc

Index: media/cast/sender/video_encoder_unittest.cc
diff --git a/media/cast/sender/video_encoder_unittest.cc b/media/cast/sender/video_encoder_unittest.cc
index e308fc4a2e3c45ed1115e027da2200ef8ffa6337..a25d33486e1667402932451c823bfaec72dd9b17 100644
--- a/media/cast/sender/video_encoder_unittest.cc
+++ b/media/cast/sender/video_encoder_unittest.cc
@@ -11,6 +11,7 @@
 #include "media/base/video_frame.h"
 #include "media/cast/cast_defines.h"
 #include "media/cast/cast_environment.h"
+#include "media/cast/common/rtp_time.h"
 #include "media/cast/sender/fake_video_encode_accelerator_factory.h"
 #include "media/cast/sender/video_frame_factory.h"
 #include "media/cast/sender/video_encoder.h"
@@ -168,14 +169,11 @@ class VideoEncoderTest
       uint32 frame_id,
       uint32 reference_frame_id) {
     return video_encoder_->EncodeVideoFrame(
-        video_frame,
-        Now(),
+        video_frame, Now(),
         base::Bind(&VideoEncoderTest::DeliverEncodedVideoFrame,
-                   base::Unretained(this),
-                   frame_id,
-                   reference_frame_id,
-                   TimeDeltaToRtpDelta(video_frame->timestamp(),
-                                       kVideoFrequency),
+                   base::Unretained(this), frame_id, reference_frame_id,
+                   RtpTimeTicks::FromTimeDelta(video_frame->timestamp(),
+                                               kVideoFrequency),
                    Now()));
   }
 
@@ -213,12 +211,11 @@ class VideoEncoderTest
 
   // Checks that |encoded_frame| matches expected values.  This is the method
   // bound in the callback returned from EncodeAndCheckDelivery().
-  void DeliverEncodedVideoFrame(
-      uint32 expected_frame_id,
-      uint32 expected_last_referenced_frame_id,
-      uint32 expected_rtp_timestamp,
-      const base::TimeTicks& expected_reference_time,
-      scoped_ptr<SenderEncodedFrame> encoded_frame) {
+  void DeliverEncodedVideoFrame(uint32 expected_frame_id,
+                                uint32 expected_last_referenced_frame_id,
+                                RtpTimeTicks expected_rtp_timestamp,
+                                const base::TimeTicks& expected_reference_time,
+                                scoped_ptr<SenderEncodedFrame> encoded_frame) {
     EXPECT_TRUE(cast_environment_->CurrentlyOn(CastEnvironment::MAIN));
 
     EXPECT_EQ(expected_frame_id, encoded_frame->frame_id);