VideoAdapter: Drop frames based on actual fps instead of expected fps

webrtc/media/base/videocapturer.cc

Index: webrtc/media/base/videocapturer.cc
diff --git a/webrtc/media/base/videocapturer.cc b/webrtc/media/base/videocapturer.cc
index 084a9b913c7912f00e18647725dcb13c237a160d..27da97caf4ff143a136f99c47008e70c6f1cee9f 100644
--- a/webrtc/media/base/videocapturer.cc
+++ b/webrtc/media/base/videocapturer.cc
@@ -227,6 +227,7 @@ void VideoCapturer::OnFrameCaptured(VideoCapturer*,
   if (enable_video_adapter_ && !IsScreencast()) {
     video_adapter_.AdaptFrameResolution(
         captured_frame->width, captured_frame->height,
+        captured_frame->time_stamp,
         &cropped_width, &cropped_height,
         &out_width, &out_height);
     if (out_width == 0 || out_height == 0) {