[CRD iOS] Add the host setup instruction page

remoting/ios/app/remoting_theme.h

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef REMOTING_IOS_APP_REMOTING_THEME_H_
 #define REMOTING_IOS_APP_REMOTING_THEME_H_
 
 #import <UIKit/UIKit.h>
 
 // Styles to be used when rendering the iOS client's UI.
 @interface RemotingTheme : NSObject
 
 // Colors
 
 @property(class, nonatomic, readonly) UIColor* connectionViewBackgroundColor;
 @property(class, nonatomic, readonly) UIColor* hostListBackgroundColor;
 @property(class, nonatomic, readonly) UIColor* menuBlueColor;
 @property(class, nonatomic, readonly) UIColor* offlineHostColor;
 @property(class, nonatomic, readonly) UIColor* onlineHostColor;
+@property(class, nonatomic, readonly) UIColor* setupListBackgroundColor;
 
 // Icons
 
 @property(class, nonatomic, readonly) UIImage* arrowIcon;
 @property(class, nonatomic, readonly) UIImage* backIcon;
 @property(class, nonatomic, readonly) UIImage* checkboxCheckedIcon;
 @property(class, nonatomic, readonly) UIImage* checkboxOutlineIcon;
 @property(class, nonatomic, readonly) UIImage* closeIcon;
 @property(class, nonatomic, readonly) UIImage* desktopIcon;
 @property(class, nonatomic, readonly) UIImage* menuIcon;
 @property(class, nonatomic, readonly) UIImage* radioCheckedIcon;
 @property(class, nonatomic, readonly) UIImage* radioOutlineIcon;
 @property(class, nonatomic, readonly) UIImage* refreshIcon;
 @property(class, nonatomic, readonly) UIImage* settingsIcon;
 
 @end
 
 #endif  // REMOTING_IOS_APP_REMOTING_THEME_H_