GN: Add targets for AppRTCDemo on Mac+iOS

webrtc/examples/objc/AppRTCDemo/ios/ARDMainView.m

 /*
  *  Copyright 2015 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 "ARDMainView.h"
 
 #import "UIImage+ARDUtilities.h"
 
 // TODO(tkchin): retrieve status bar height dynamically.
 static CGFloat const kStatusBarHeight = 20;
 
 static CGFloat const kRoomTextButtonSize = 40;
 static CGFloat const kRoomTextFieldHeight = 40;
 static CGFloat const kRoomTextFieldMargin = 8;
 static CGFloat const kCallControlMargin = 8;
-static CGFloat const kAppLabelHeight = 20;
 
 // Helper view that contains a text field and a clear button.
 @interface ARDRoomTextField : UIView <UITextFieldDelegate>
 @property(nonatomic, readonly) NSString *roomText;
 @end
 
 @implementation ARDRoomTextField {
   UITextField *_roomText;
   UIButton *_clearButton;
 }
@@ skipping 299 matching lines @@
   }
   room = [room stringByReplacingOccurrencesOfString:@"-" withString:@""];
   [_delegate mainView:self
                 didInputRoom:room
                   isLoopback:_loopbackSwitch.isOn
                  isAudioOnly:_audioOnlySwitch.isOn
               useManualAudio:_useManualAudioSwitch.isOn];
 }
 
 @end