VideoCaptureInput enforce VideoFrame::render_time to be generated by webrtc clock.

webrtc/video/video_send_stream_tests.cc

Index: webrtc/video/video_send_stream_tests.cc
diff --git a/webrtc/video/video_send_stream_tests.cc b/webrtc/video/video_send_stream_tests.cc
index 00aa2a901815cb4b0be6296e55e7ade6dae09364..49cd0f43475ed7dfbf9a96cd79f6a25307940f70 100644
--- a/webrtc/video/video_send_stream_tests.cc
+++ b/webrtc/video/video_send_stream_tests.cc
@@ -1199,7 +1199,6 @@ void ExpectEqualTextureFrames(const VideoFrame& frame1,
   EXPECT_EQ(frame1.native_handle(), frame2.native_handle());
   EXPECT_EQ(frame1.width(), frame2.width());
   EXPECT_EQ(frame1.height(), frame2.height());
-  EXPECT_EQ(frame1.render_time_ms(), frame2.render_time_ms());
 }
 
 void ExpectEqualBufferFrames(const VideoFrame& frame1,
@@ -1209,7 +1208,6 @@ void ExpectEqualBufferFrames(const VideoFrame& frame1,
   EXPECT_EQ(frame1.stride(kYPlane), frame2.stride(kYPlane));
   EXPECT_EQ(frame1.stride(kUPlane), frame2.stride(kUPlane));
   EXPECT_EQ(frame1.stride(kVPlane), frame2.stride(kVPlane));
-  EXPECT_EQ(frame1.render_time_ms(), frame2.render_time_ms());
   ASSERT_EQ(frame1.allocated_size(kYPlane), frame2.allocated_size(kYPlane));
   EXPECT_EQ(0,
             memcmp(frame1.buffer(kYPlane),