Revert of Rename AppRTCDemo on Android and iOS to AppRTCMobile

webrtc/examples/objc/AppRTCDemo/ARDCEODTURNClient.m

Index: webrtc/examples/objc/AppRTCDemo/ARDCEODTURNClient.m
diff --git a/webrtc/examples/objc/AppRTCDemo/ARDCEODTURNClient.m b/webrtc/examples/objc/AppRTCDemo/ARDCEODTURNClient.m
new file mode 100644
index 0000000000000000000000000000000000000000..5be33353188737b351cd5f910c3adacaa549ba6c
--- /dev/null
+++ b/webrtc/examples/objc/AppRTCDemo/ARDCEODTURNClient.m
@@ -0,0 +1,66 @@
+/*
+ *  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 "ARDCEODTURNClient.h"
+
+#import "ARDUtilities.h"
+#import "RTCIceServer+JSON.h"
+
+// TODO(tkchin): move this to a configuration object.
+static NSString *kTURNOriginURLString = @"https://apprtc.appspot.com";
+static NSString *kARDCEODTURNClientErrorDomain = @"ARDCEODTURNClient";
+static NSInteger kARDCEODTURNClientErrorBadResponse = -1;
+
+@implementation ARDCEODTURNClient {
+  NSURL *_url;
+}
+
+- (instancetype)initWithURL:(NSURL *)url {
+  NSParameterAssert([url absoluteString].length);
+  if (self = [super init]) {
+    _url = url;
+  }
+  return self;
+}
+
+- (void)requestServersWithCompletionHandler:
+    (void (^)(NSArray *turnServers,
+              NSError *error))completionHandler {
+  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:_url];
+  // We need to set origin because TURN provider whitelists requests based on
+  // origin.
+  [request addValue:@"Mozilla/5.0" forHTTPHeaderField:@"user-agent"];
+  [request addValue:kTURNOriginURLString forHTTPHeaderField:@"origin"];
+  [NSURLConnection sendAsyncRequest:request
+                  completionHandler:^(NSURLResponse *response,
+                                      NSData *data,
+                                      NSError *error) {
+    NSArray *turnServers = [NSArray array];
+    if (error) {
+      completionHandler(nil, error);
+      return;
+    }
+    NSDictionary *dict = [NSDictionary dictionaryWithJSONData:data];
+    turnServers = @[ [RTCIceServer serverFromCEODJSONDictionary:dict] ];
+    if (!turnServers) {
+      NSError *responseError =
+          [[NSError alloc] initWithDomain:kARDCEODTURNClientErrorDomain
+                                     code:kARDCEODTURNClientErrorBadResponse
+                                 userInfo:@{
+            NSLocalizedDescriptionKey: @"Bad TURN response.",
+          }];
+      completionHandler(turnServers, responseError);
+      return;
+    }
+    completionHandler(turnServers, nil);
+  }];
+}
+
+@end