Update iOS AppRTCDemo to use the updated Objective-C API.

webrtc/examples/objc/AppRTCDemo/RTCICEServer+JSON.h

Index: webrtc/examples/objc/AppRTCDemo/RTCICEServer+JSON.h
diff --git a/webrtc/examples/objc/AppRTCDemo/RTCICEServer+JSON.h b/webrtc/examples/objc/AppRTCDemo/RTCICEServer+JSON.h
index 10339e7a3deecf1f50c94c08ed5544a4436e5068..3f9ceea373c9045ccbdf5b49e9790048deaf096c 100644
--- a/webrtc/examples/objc/AppRTCDemo/RTCICEServer+JSON.h
+++ b/webrtc/examples/objc/AppRTCDemo/RTCICEServer+JSON.h
@@ -8,11 +8,11 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#import "RTCICEServer.h"
+#import "webrtc/api/objc/RTCIceServer.h"
 
-@interface RTCICEServer (JSON)
+@interface RTCIceServer (JSON)
 
-+ (RTCICEServer *)serverFromJSONDictionary:(NSDictionary *)dictionary;
++ (RTCIceServer *)serverFromJSONDictionary:(NSDictionary *)dictionary;
 // CEOD provides different JSON, and this parses that.
 + (NSArray *)serversFromCEODJSONDictionary:(NSDictionary *)dictionary;