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

webrtc/examples/objc/AppRTCDemo/mac/APPRTCAppDelegate.m

 /*
  *  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.
  */
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 #import "APPRTCAppDelegate.h"
 
+#import "webrtc/base/objc/RTCSSLAdapter.h"
+
 #import "APPRTCViewController.h"
-#import "RTCPeerConnectionFactory.h"
 
 @interface APPRTCAppDelegate () <NSWindowDelegate>
 @end
 
 @implementation APPRTCAppDelegate {
   APPRTCViewController* _viewController;
   NSWindow* _window;
 }
 
 #pragma mark - NSApplicationDelegate
 
 - (void)applicationDidFinishLaunching:(NSNotification*)notification {
-  [RTCPeerConnectionFactory initializeSSL];
+  RTCInitializeSSL();
   NSScreen* screen = [NSScreen mainScreen];
   NSRect visibleRect = [screen visibleFrame];
   NSRect windowRect = NSMakeRect(NSMidX(visibleRect),
                                  NSMidY(visibleRect),
                                  1320,
                                  1140);
   NSUInteger styleMask = NSTitledWindowMask | NSClosableWindowMask;
   _window = [[NSWindow alloc] initWithContentRect:windowRect
                                         styleMask:styleMask
                                           backing:NSBackingStoreBuffered
                                             defer:NO];
   _window.delegate = self;
   [_window makeKeyAndOrderFront:self];
   [_window makeMainWindow];
   _viewController = [[APPRTCViewController alloc] initWithNibName:nil
                                                            bundle:nil];
   [_window setContentView:[_viewController view]];
 }
 
 #pragma mark - NSWindow
 
 - (void)windowWillClose:(NSNotification*)notification {
   [_viewController windowWillClose:notification];
-  [RTCPeerConnectionFactory deinitializeSSL];
+  RTCCleanupSSL();
   [NSApp terminate:self];
 }
 
 @end