iOS HW H264 support.

talk/examples/objc/AppRTCDemo/ARDSDPUtils.h

Index: talk/examples/objc/AppRTCDemo/ARDSDPUtils.h
diff --git a/talk/app/webrtc/objc/public/RTCStatsDelegate.h b/talk/examples/objc/AppRTCDemo/ARDSDPUtils.h
similarity index 77%
copy from talk/app/webrtc/objc/public/RTCStatsDelegate.h
copy to talk/examples/objc/AppRTCDemo/ARDSDPUtils.h
index 54e8e569a14e3e6dc5564885e98bcc01375ef090..2f14e6dec0b40b77b1f6d03be0ef639387b4d0db 100644
--- a/talk/app/webrtc/objc/public/RTCStatsDelegate.h
+++ b/talk/examples/objc/AppRTCDemo/ARDSDPUtils.h
@@ -1,6 +1,6 @@
 /*
  * libjingle
- * Copyright 2014 Google Inc.
+ * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -27,13 +27,15 @@
 
 #import <Foundation/Foundation.h>
 
-@class RTCPeerConnection;
+@class RTCSessionDescription;
 
-// RTCSessionDescriptionDelegate is a protocol for receiving statistic
-// reports from RTCPeerConnection.
-@protocol RTCStatsDelegate<NSObject>
+@interface ARDSDPUtils : NSObject
 
-- (void)peerConnection:(RTCPeerConnection*)peerConnection
-           didGetStats:(NSArray*)stats;  // NSArray of RTCStatsReport*.
+// Updates the original SDP description to instead prefer the specified video
+// codec. We do this by placing the specified codec at the beginning of the
+// codec list if it exists in the sdp.
++ (RTCSessionDescription *)
+    descriptionForDescription:(RTCSessionDescription *)description
+          preferredVideoCodec:(NSString *)codec;
 
 @end