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/talk/app/webrtc/objc/RTCVideoRendererAdapter.mm b/talk/app/webrtc/objc/RTCVideoRendererAdapter.mm
index b0b2129..a7f7e95 100644
--- a/talk/app/webrtc/objc/RTCVideoRendererAdapter.mm
+++ b/talk/app/webrtc/objc/RTCVideoRendererAdapter.mm
@@ -36,15 +36,16 @@
 
 namespace webrtc {
 
-class RTCVideoRendererNativeAdapter : public VideoRendererInterface {
+class RTCVideoRendererNativeAdapter
+    : public rtc::VideoSinkInterface<cricket::VideoFrame> {
  public:
   RTCVideoRendererNativeAdapter(RTCVideoRendererAdapter* adapter) {
     _adapter = adapter;
     _size = CGSizeZero;
   }
 
-  void RenderFrame(const cricket::VideoFrame* videoFrame) override {
-    const cricket::VideoFrame* frame = videoFrame->GetCopyWithRotationApplied();
+  void OnFrame(const cricket::VideoFrame& videoFrame) override {
+    const cricket::VideoFrame* frame = videoFrame.GetCopyWithRotationApplied();
     CGSize currentSize = CGSizeMake(frame->GetWidth(), frame->GetHeight());
     if (!CGSizeEqualToSize(_size, currentSize)) {
       _size = currentSize;
@@ -74,7 +75,7 @@
   return self;
 }
 
-- (webrtc::VideoRendererInterface*)nativeVideoRenderer {
+- (rtc::VideoSinkInterface<cricket::VideoFrame> *)nativeVideoRenderer {
   return _adapter.get();
 }