remove unused hint flags.

samples/ControlCatalog/Pages/WindowCustomizationsPage.xaml

@@ -6,10 +6,8 @@
              x:Class="ControlCatalog.Pages.WindowCustomizationsPage">
   <StackPanel Spacing="10"  Margin="25">
     <CheckBox Content="Extend Client Area to Decorations" IsChecked="{Binding ExtendClientAreaEnabled}" />
-    <CheckBox Content="Titlebar" IsChecked="{Binding SystemTitleBarEnabled}" />
-    <CheckBox Content="System Chrome Buttons" IsChecked="{Binding SystemChromeButtonsEnabled}" />
-    <CheckBox Content="Managed Chrome Buttons" IsChecked="{Binding ManagedChromeButtonsEnabled}" />
-    <CheckBox Content="Prefer System Chrome Buttons" IsChecked="{Binding PreferSystemChromeButtonsEnabled}" />
+    <CheckBox Content="Titlebar" IsChecked="{Binding SystemTitleBarEnabled}" />    
+    <CheckBox Content="Prefer System Chrome" IsChecked="{Binding PreferSystemChromeEnabled}" />
     <Slider Minimum="-1" Maximum="200" Value="{Binding TitleBarHeight}" />
     <ComboBox x:Name="TransparencyLevels" SelectedIndex="{Binding TransparencyLevel}">
       <ComboBoxItem>None</ComboBoxItem>

samples/ControlCatalog/ViewModels/MainWindowViewModel.cs

@@ -16,6 +16,12 @@ namespace ControlCatalog.ViewModels
         private bool _isMenuItemChecked = true;
         private WindowState _windowState;
         private WindowState[] _windowStates;
+        private int _transparencyLevel;
+        private ExtendClientAreaChromeHints _chromeHints;
+        private bool _extendClientAreaEnabled;
+        private bool _systemTitleBarEnabled;        
+        private bool _preferSystemChromeEnabled;
+        private double _titleBarHeight;
 
         public MainWindowViewModel(IManagedNotificationManager notificationManager)
         {
@@ -65,27 +71,17 @@ namespace ControlCatalog.ViewModels
                 WindowState.FullScreen,
             };
 
-            this.WhenAnyValue(x => x.SystemChromeButtonsEnabled, x=>x.ManagedChromeButtonsEnabled, x => x.SystemTitleBarEnabled, x=>x.PreferSystemChromeButtonsEnabled)
+            this.WhenAnyValue(x => x.SystemTitleBarEnabled, x=>x.PreferSystemChromeEnabled)
                 .Subscribe(x =>
                 {
                     var hints = ExtendClientAreaChromeHints.NoChrome | ExtendClientAreaChromeHints.OSXThickTitleBar;
 
                     if(x.Item1)
-                    {
-                        hints |= ExtendClientAreaChromeHints.SystemChromeButtons;
-                    }
-
-                    if(x.Item2)
-                    {
-                        hints |= ExtendClientAreaChromeHints.ManagedChromeButtons;
-                    }
-
-                    if(x.Item3)
                     {
                         hints |= ExtendClientAreaChromeHints.SystemTitleBar;
                     }
 
-                    if(x.Item4)
+                    if(x.Item2)
                     {
                         hints |= ExtendClientAreaChromeHints.PreferSystemChromeButtons;
                     }
@@ -93,69 +89,39 @@ namespace ControlCatalog.ViewModels
                     ChromeHints = hints;
                 });
 
-            SystemTitleBarEnabled = true;
-            SystemChromeButtonsEnabled = true;
+            SystemTitleBarEnabled = true;            
             TitleBarHeight = -1;
-        }
-
-        private int _transparencyLevel;
+        }        
 
         public int TransparencyLevel
         {
             get { return _transparencyLevel; }
             set { this.RaiseAndSetIfChanged(ref _transparencyLevel, value); }
-        }
-
-        private ExtendClientAreaChromeHints _chromeHints;
+        }        
 
         public ExtendClientAreaChromeHints ChromeHints
         {
             get { return _chromeHints; }
             set { this.RaiseAndSetIfChanged(ref _chromeHints, value); }
-        }
-
-
-        private bool _extendClientAreaEnabled;
+        }        
 
         public bool ExtendClientAreaEnabled
         {
             get { return _extendClientAreaEnabled; }
             set { this.RaiseAndSetIfChanged(ref _extendClientAreaEnabled, value); }
-        }
-
-        private bool _systemTitleBarEnabled;
+        }        
 
         public bool SystemTitleBarEnabled
         {
             get { return _systemTitleBarEnabled; }
             set { this.RaiseAndSetIfChanged(ref _systemTitleBarEnabled, value); }
-        }
-
-        private bool _systemChromeButtonsEnabled;
+        }        
 
-        public bool SystemChromeButtonsEnabled
+        public bool PreferSystemChromeEnabled
         {
-            get { return _systemChromeButtonsEnabled; }
-            set { this.RaiseAndSetIfChanged(ref _systemChromeButtonsEnabled, value); }
-        }
-
-        private bool _managedChromeButtonsEnabled;
-
-        public bool ManagedChromeButtonsEnabled
-        {
-            get { return _managedChromeButtonsEnabled; }
-            set { this.RaiseAndSetIfChanged(ref _managedChromeButtonsEnabled, value); }
-        }
-
-        private bool _preferSystemChromeButtonsEnabled;
-
-        public bool PreferSystemChromeButtonsEnabled
-        {
-            get { return _preferSystemChromeButtonsEnabled; }
-            set { this.RaiseAndSetIfChanged(ref _preferSystemChromeButtonsEnabled, value); }
-        }
-
-        private double _titleBarHeight;
+            get { return _preferSystemChromeEnabled; }
+            set { this.RaiseAndSetIfChanged(ref _preferSystemChromeEnabled, value); }
+        }        
 
         public double TitleBarHeight
         {
@@ -163,7 +129,6 @@ namespace ControlCatalog.ViewModels
             set { this.RaiseAndSetIfChanged(ref _titleBarHeight, value); }
         }
 
-
         public WindowState WindowState
         {
             get { return _windowState; }

src/Avalonia.Controls/Platform/ExtendClientAreaChromeHints.cs

@@ -8,14 +8,7 @@ namespace Avalonia.Platform
         NoChrome,
         Default = SystemTitleBar,        
         SystemTitleBar = 0x01,
-        ManagedChromeButtons = 0x02,
-        SystemChromeButtons = 0x04,
-
-        OSXThickTitleBar = 0x08,
-
-        PreferSystemChromeButtons = 0x10,
-        
-        AdaptiveChromeWithTitleBar = SystemTitleBar | PreferSystemChromeButtons,
-        AdaptiveChromeWithoutTitleBar = PreferSystemChromeButtons,
+        PreferSystemChromeButtons = 0x02,
+        OSXThickTitleBar = 0x08,               
     }
 }