Deprecate RTCRtpFragmentationHeader argument for objc decoders.

Bug: webrtc:6471
Change-Id: Id542360c470ed0ea13b7e963f11bcd50d52c1d43
Reviewed-on: https://webrtc-review.googlesource.com/72442
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Anders Carlsson <andersc@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23036}
diff --git a/sdk/objc/Framework/Classes/VideoToolbox/RTCVideoDecoderH264.mm b/sdk/objc/Framework/Classes/VideoToolbox/RTCVideoDecoderH264.mm
index 859bf03..c39a309 100644
--- a/sdk/objc/Framework/Classes/VideoToolbox/RTCVideoDecoderH264.mm
+++ b/sdk/objc/Framework/Classes/VideoToolbox/RTCVideoDecoderH264.mm
@@ -101,11 +101,21 @@
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
-- (NSInteger)decode:(RTCEncodedImage *)inputImage
+- (NSInteger)decode:(RTCEncodedImage *)encodedImage
           missingFrames:(BOOL)missingFrames
     fragmentationHeader:(RTCRtpFragmentationHeader *)fragmentationHeader
       codecSpecificInfo:(nullable id<RTCCodecSpecificInfo>)info
            renderTimeMs:(int64_t)renderTimeMs {
+  return [self decode:encodedImage
+          missingFrames:missingFrames
+      codecSpecificInfo:info
+           renderTimeMs:renderTimeMs];
+}
+
+- (NSInteger)decode:(RTCEncodedImage *)inputImage
+        missingFrames:(BOOL)missingFrames
+    codecSpecificInfo:(nullable id<RTCCodecSpecificInfo>)info
+         renderTimeMs:(int64_t)renderTimeMs {
   RTC_DCHECK(inputImage.buffer);
 
   if (_error != noErr) {