Move talk/examples/* to webrtc/examples.

webrtc/examples/objc/AppRTCDemo/common/ARDUtilities.h

+/*
+ *  Copyright 2014 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#import <Foundation/Foundation.h>
+
+@interface NSDictionary (ARDUtilites)
+
+// Creates a dictionary with the keys and values in the JSON object.
++ (NSDictionary *)dictionaryWithJSONString:(NSString *)jsonString;
++ (NSDictionary *)dictionaryWithJSONData:(NSData *)jsonData;
+
+@end
+
+@interface NSURLConnection (ARDUtilities)
+
+// Issues an asynchronous request that calls back on main queue.
++ (void)sendAsyncRequest:(NSURLRequest *)request
+       completionHandler:(void (^)(NSURLResponse *response,
+                                   NSData *data,
+                                   NSError *error))completionHandler;
+
+// Posts data to the specified URL.
++ (void)sendAsyncPostToURL:(NSURL *)url
+                  withData:(NSData *)data
+         completionHandler:(void (^)(BOOL succeeded,
+                                     NSData *data))completionHandler;
+
+@end