iOS HW H264 support.

talk/examples/objc/AppRTCDemo/ARDSDPUtils.h

Index: talk/examples/objc/AppRTCDemo/ARDSDPUtils.h
diff --git a/talk/examples/objc/AppRTCDemo/ARDMessageResponse.h b/talk/examples/objc/AppRTCDemo/ARDSDPUtils.h
similarity index 77%
copy from talk/examples/objc/AppRTCDemo/ARDMessageResponse.h
copy to talk/examples/objc/AppRTCDemo/ARDSDPUtils.h
index b1e6938f4cc906b07c14cb6b9f9e1bc6a4a793e8..2f14e6dec0b40b77b1f6d03be0ef639387b4d0db 100644
--- a/talk/examples/objc/AppRTCDemo/ARDMessageResponse.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:
@@ -27,17 +27,15 @@
 
 #import <Foundation/Foundation.h>
 
-typedef NS_ENUM(NSInteger, ARDMessageResultType) {
-  kARDMessageResultTypeUnknown,
-  kARDMessageResultTypeSuccess,
-  kARDMessageResultTypeInvalidRoom,
-  kARDMessageResultTypeInvalidClient
-};
+@class RTCSessionDescription;
 
-@interface ARDMessageResponse : NSObject
+@interface ARDSDPUtils : NSObject
 
-@property(nonatomic, readonly) ARDMessageResultType result;
-
-+ (ARDMessageResponse *)responseFromJSONData:(NSData *)data;
+// 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