Explicitly @synthesize ObjC @properties

This is required after https://code.google.com/p/gyp/source/detail?r=1768
turned on -Wobjc-missing-property-synthesis for ninja builds (until then it
was only enabled for xcode builds) to allow chromium_deps to roll in
webrtc/DEPS.

BUG=2560
R=kjellander@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/3089004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5047 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/talk/examples/ios/AppRTCDemo/APPRTCAppClient.m b/talk/examples/ios/AppRTCDemo/APPRTCAppClient.m
index 99f5166..d6c86d8 100644
--- a/talk/examples/ios/AppRTCDemo/APPRTCAppClient.m
+++ b/talk/examples/ios/AppRTCDemo/APPRTCAppClient.m
@@ -49,6 +49,19 @@
 
 @implementation APPRTCAppClient
 
+@synthesize ICEServerDelegate = _ICEServerDelegate;
+@synthesize messageHandler = _messageHandler;
+
+@synthesize backgroundQueue = _backgroundQueue;
+@synthesize baseURL = _baseURL;
+@synthesize gaeChannel = _gaeChannel;
+@synthesize postMessageUrl = _postMessageUrl;
+@synthesize pcConfig = _pcConfig;
+@synthesize roomHtml = _roomHtml;
+@synthesize sendQueue = _sendQueue;
+@synthesize token = _token;
+@synthesize verboseLogging = _verboseLogging;
+
 - (id)init {
   if (self = [super init]) {
     _backgroundQueue = dispatch_queue_create("RTCBackgroundQueue", NULL);