feat: add requestcontext to winforms web browser

Author: jodett

CefSharp.OutOfProcess.WinForms/ChromiumWebBrowser.cs

@@ -5,6 +5,7 @@
 using CefSharp.OutOfProcess.Internal;
 using CefSharp.Dom;
 using PInvoke;
+using System.Collections.Generic;
 
 namespace CefSharp.OutOfProcess.WinForms
 {
@@ -17,6 +18,7 @@ public class ChromiumWebBrowser : Control, IChromiumWebBrowserInternal
         private IDevToolsContext _devToolsContext;
         private OutOfProcessConnectionTransport _devToolsContextConnectionTransport;
         private bool _devToolsReady;
+        private IDictionary<string, object> requestContextPreferences;
 
         /// <inheritdoc/>
         public event EventHandler DOMContentLoaded;
@@ -75,6 +77,18 @@ public ChromiumWebBrowser(OutOfProcessHost host, string initialAddress)
             _initialAddress = initialAddress;
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ChromiumWebBrowser"/> instance.
+        /// </summary>
+        /// <param name="host">Out of process host</param>
+        /// <param name="initialAddress">address to load initially</param>
+        /// <param name="requestContextPreferences">requestContextPreferences to set</param>
+        public ChromiumWebBrowser(OutOfProcessHost host, string initialAddress = null, IDictionary<string, object> requestContextPreferences = null)
+            : this(host, initialAddress)
+        {
+            this.requestContextPreferences = requestContextPreferences;
+        }
+
         /// <inheritdoc/>
         int IChromiumWebBrowserInternal.Id
         {
@@ -128,7 +142,7 @@ protected override void OnHandleCreated(EventArgs e)
 
             var size = Size;
 
-            _host.CreateBrowser(this, Handle, url: _initialAddress, out _id);
+            _host.CreateBrowser(this, Handle, url: _initialAddress, out _id, requestContextPreferences);
 
             _devToolsContextConnectionTransport = new OutOfProcessConnectionTransport(_id, _host);
 
@@ -305,6 +319,15 @@ public Task<Response> GoBackAsync(NavigationOptions options = null)
             return _devToolsContext.GoBackAsync(options);
         }
 
+        /// <summary>
+        /// Update Request Context Preferences for this browser.
+        /// </summary>
+        /// <param name="preferences">The preferences.</param>
+        public void UpdateRequestContextPreferences(IDictionary<string, object> preferences)
+        {
+            _host.UpdateRequestContextPreferences(this._id, preferences);
+        }
+
         /// <inheritdoc/>
         public Task<Response> GoForwardAsync(NavigationOptions options = null)
         {

CefSharp.OutOfProcess.Wpf.HwndHost/ChromiumWebBrowser.cs

@@ -432,7 +432,7 @@ public Task<Response> GoForwardAsync(NavigationOptions options = null)
         }
 
         /// <summary>
-        /// Update Global Request Context Preferences for all browsers.
+        /// Update Request Context Preferences for this browser.
         /// </summary>
         /// <param name="preferences">The preferences.</param>
         public void UpdateRequestContextPreferences(IDictionary<string, object> preferences)
@@ -749,7 +749,7 @@ void IChromiumWebBrowserInternal.OnAfterBrowserCreated(IntPtr hwnd)
             {
                 return;
             }
-            
+
            _browserHwnd = hwnd;
 
             Interlocked.Exchange(ref _browserInitialized, 1);