RTC Video Encoder: Use capturer timestamp

media/gpu/vaapi_video_encode_accelerator.h

Index: media/gpu/vaapi_video_encode_accelerator.h
diff --git a/media/gpu/vaapi_video_encode_accelerator.h b/media/gpu/vaapi_video_encode_accelerator.h
index 1d5fb9d161ff06bde94cecade20d1e3643eb528d..bc4e3ca51b0b5cb00128e1d0c8962b96801975f5 100644
--- a/media/gpu/vaapi_video_encode_accelerator.h
+++ b/media/gpu/vaapi_video_encode_accelerator.h
@@ -73,6 +73,8 @@ class MEDIA_GPU_EXPORT VaapiVideoEncodeAccelerator
     // True if this job will produce a keyframe. Used to report
     // to BitstreamBufferReady().
     bool keyframe;
+    // Captured timestamp.

[Pawel Osciak, 2016/05/27 04:46:38]

Nit: this doesn't have to be "captured". Let's say "source timestamp" please.

[shenghao, 2016/05/30 09:18:02]

Done.

+    base::TimeDelta timestamp;
 
     EncodeJob();
     ~EncodeJob();
@@ -118,7 +120,7 @@ class MEDIA_GPU_EXPORT VaapiVideoEncodeAccelerator
   // Check if we have sufficient resources for a new encode job, claim them and
   // fill current_encode_job_ with them.
   // Return false if we cannot start a new job yet, true otherwise.
-  bool PrepareNextJob();
+  bool PrepareNextJob(base::TimeDelta timestamp);
 
   // Begin a new frame, making it a keyframe if |force_keyframe| is true,
   // updating current_pic_.