Delete backwards compatibility cruft from cricket::VideoFrame and VideoSourceInterface.

talk/media/webrtc/webrtcvideoframe.h

Index: talk/media/webrtc/webrtcvideoframe.h
diff --git a/talk/media/webrtc/webrtcvideoframe.h b/talk/media/webrtc/webrtcvideoframe.h
index 715007f022d2489a403ec1bb8191a49437a0ad89..33d28738749b16c1bf92c802ad08c6c3ac5e3015 100644
--- a/talk/media/webrtc/webrtcvideoframe.h
+++ b/talk/media/webrtc/webrtcvideoframe.h
@@ -66,16 +66,7 @@ class WebRtcVideoFrame : public VideoFrame {
 
   void InitToEmptyBuffer(int w, int h, int64_t time_stamp_ns);
 
-  // TODO(nisse): Old signature. Delete after chrome is updated.
-  void InitToEmptyBuffer(int w, int h, size_t pixel_width, size_t pixel_height,
-                         int64_t time_stamp_ns) {
-    InitToEmptyBuffer(w, h, time_stamp_ns);
-  }
-
   bool InitToBlack(int w, int h, int64_t time_stamp_ns) override;
-  // Needed to inherit the InitToBlack wrapper method with 5
-  // arguments.
-  using VideoFrame::InitToBlack;
 
   // From base class VideoFrame.
   bool Reset(uint32_t format,