Delete VideoRendererInterface.

Use in chromium was deleted a few days ago.

BUG=webrtc:5426
R=magjed@webrtc.org, pbos@webrtc.org, perkj@webrtc.org, pthatcher@webrtc.org, tkchin@webrtc.org

Review URL: https://codereview.webrtc.org/1817473002 .

Cr-Commit-Position: refs/heads/master@{#12099}
diff --git a/webrtc/api/objc/RTCVideoRendererAdapter.mm b/webrtc/api/objc/RTCVideoRendererAdapter.mm
index fdaba68..c4f1ed8 100644
--- a/webrtc/api/objc/RTCVideoRendererAdapter.mm
+++ b/webrtc/api/objc/RTCVideoRendererAdapter.mm
@@ -15,16 +15,17 @@
 
 namespace webrtc {
 
-class VideoRendererAdapter : public VideoRendererInterface {
+class VideoRendererAdapter
+    : public rtc::VideoSinkInterface<cricket::VideoFrame> {
  public:
   VideoRendererAdapter(RTCVideoRendererAdapter* adapter) {
     adapter_ = adapter;
     size_ = CGSizeZero;
   }
 
-  void RenderFrame(const cricket::VideoFrame *nativeVideoFrame) override {
+  void OnFrame(const cricket::VideoFrame& nativeVideoFrame) override {
     const cricket::VideoFrame *frame =
-        nativeVideoFrame->GetCopyWithRotationApplied();
+        nativeVideoFrame.GetCopyWithRotationApplied();
     CGSize current_size = CGSizeMake(frame->GetWidth(), frame->GetHeight());
     if (!CGSizeEqualToSize(size_, current_size)) {
       size_ = current_size;
@@ -56,7 +57,7 @@
   return self;
 }
 
-- (webrtc::VideoRendererInterface *)nativeVideoRenderer {
+- (rtc::VideoSinkInterface<cricket::VideoFrame> *)nativeVideoRenderer {
   return _adapter.get();
 }