AppRTCDemo file logging.

talk/examples/objc/AppRTCDemo/ARDSignalingMessage.m

Index: talk/examples/objc/AppRTCDemo/ARDSignalingMessage.m
diff --git a/talk/examples/objc/AppRTCDemo/ARDSignalingMessage.m b/talk/examples/objc/AppRTCDemo/ARDSignalingMessage.m
index e9fb09aeef6833e2bb10cfaee289c0114e064bd2..dc00e8f77c3c8f0528ac7de254ae8a582f5ae00b 100644
--- a/talk/examples/objc/AppRTCDemo/ARDSignalingMessage.m
+++ b/talk/examples/objc/AppRTCDemo/ARDSignalingMessage.m
@@ -27,6 +27,7 @@
 
 #import "ARDSignalingMessage.h"
 
+#import "ARDLogging.h"
 #import "ARDUtilities.h"
 #import "RTCICECandidate+JSON.h"
 #import "RTCSessionDescription+JSON.h"
@@ -52,7 +53,7 @@ static NSString const *kARDSignalingMessageTypeKey = @"type";
 + (ARDSignalingMessage *)messageFromJSONString:(NSString *)jsonString {
   NSDictionary *values = [NSDictionary dictionaryWithJSONString:jsonString];
   if (!values) {
-    NSLog(@"Error parsing signaling message JSON.");
+    ARDLog(@"Error parsing signaling message JSON.");
     return nil;
   }
 
@@ -71,7 +72,7 @@ static NSString const *kARDSignalingMessageTypeKey = @"type";
   } else if ([typeString isEqualToString:@"bye"]) {
     message = [[ARDByeMessage alloc] init];
   } else {
-    NSLog(@"Unexpected type: %@", typeString);
+    ARDLog(@"Unexpected type: %@", typeString);
   }
   return message;
 }