Decouple capture timestamp and reference time

content/renderer/media/video_capture_impl_unittest.cc

Index: content/renderer/media/video_capture_impl_unittest.cc
diff --git a/content/renderer/media/video_capture_impl_unittest.cc b/content/renderer/media/video_capture_impl_unittest.cc
index 1fc43c024b8f7d75e7f715688e3ce1cd0baf00cc..ca8ba1d302f2bb4fde4309eb5b283bedf71e4fd0 100644
--- a/content/renderer/media/video_capture_impl_unittest.cc
+++ b/content/renderer/media/video_capture_impl_unittest.cc
@@ -168,8 +168,11 @@ class VideoCaptureImplTest : public ::testing::Test {
   }
 
   void BufferReceived(int buffer_id, const gfx::Size& size) {
+    base::TimeTicks now = base::TimeTicks::Now();
+    base::TimeDelta timestamp =
+        base::TimeDelta::FromInternalValue(now.ToInternalValue());

[miu, 2016/06/07 20:03:47]

It'd be a bit cleaner to do this instead:

  base::TimeDelta timestamp = now - base::TimeTicks();

[qiangchen, 2016/06/08 18:04:30]

Done.

But with reference time moved into metadata, the setting of reference time would
look complicated then.

     video_capture_impl_->OnBufferReceived(
-        buffer_id, base::TimeTicks::Now(), base::DictionaryValue(),
+        buffer_id, now, timestamp, base::DictionaryValue(),
         media::PIXEL_FORMAT_I420, media::VideoFrame::STORAGE_SHMEM, size,
         gfx::Rect(size));
   }