Allow MediaStream constraints to specify higher than 30 FPS tab capture.

content/renderer/pepper/pepper_media_stream_video_track_host.cc

Index: content/renderer/pepper/pepper_media_stream_video_track_host.cc
diff --git a/content/renderer/pepper/pepper_media_stream_video_track_host.cc b/content/renderer/pepper/pepper_media_stream_video_track_host.cc
index 5df6f2df9a54dcdbd7489b53a82415a60005a35c..604d827794c0818ef99b8b5f8217498b69e7886b 100644
--- a/content/renderer/pepper/pepper_media_stream_video_track_host.cc
+++ b/content/renderer/pepper/pepper_media_stream_video_track_host.cc
@@ -426,6 +426,7 @@ void PepperMediaStreamVideoTrackHost::OnVideoFrame(
 
 void PepperMediaStreamVideoTrackHost::GetCurrentSupportedFormats(
     int max_requested_width, int max_requested_height,
+    double max_requested_frame_rate,
     const VideoCaptureDeviceFormatsCB& callback) {
   if (type_ != kWrite) {
     DVLOG(1) << "GetCurrentSupportedFormats is only supported in output mode.";