Remove unused parameters from MediaStreamVideoSource::StartCaptureImpl()

content/renderer/media/pepper_to_video_track_adapter.cc

Index: content/renderer/media/pepper_to_video_track_adapter.cc
diff --git a/content/renderer/media/pepper_to_video_track_adapter.cc b/content/renderer/media/pepper_to_video_track_adapter.cc
index b40dca8b8bf66266ef982bbf0b53a31abe5fcc0e..ca3b2dbe57c4e10b8ccc225585eb9c2fd5eab904 100644
--- a/content/renderer/media/pepper_to_video_track_adapter.cc
+++ b/content/renderer/media/pepper_to_video_track_adapter.cc
@@ -47,8 +47,6 @@ class PpFrameWriter : public MediaStreamVideoSource,
  protected:
   // MediaStreamVideoSource implementation.
   void StartSourceImpl(
-      const media::VideoCaptureFormat& format,
-      const blink::WebMediaConstraints& constraints,
       const VideoCaptureDeliverFrameCB& frame_callback) override;
   void StopSourceImpl() override;
 
@@ -112,8 +110,6 @@ PpFrameWriter::~PpFrameWriter() {
 }
 
 void PpFrameWriter::StartSourceImpl(
-    const media::VideoCaptureFormat& format,
-    const blink::WebMediaConstraints& constraints,
     const VideoCaptureDeliverFrameCB& frame_callback) {
   DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
   DCHECK(!delegate_.get());