[dotnet] [bidi] Get tree command returns GetTreeResult object

Author: nvborisenko

dotnet/src/webdriver/BiDi/BrowsingContext/BrowsingContext.cs

@@ -17,7 +17,6 @@
 // under the License.
 // </copyright>
 
-using System.Collections.Generic;
 using System.Threading.Tasks;
 using System;
 
@@ -117,7 +116,7 @@ public Task HandleUserPromptAsync(HandleUserPromptOptions? options = null)
         return BiDi.BrowsingContext.HandleUserPromptAsync(this, options);
     }
 
-    public Task<IReadOnlyList<BrowsingContextInfo>> GetTreeAsync(BrowsingContextGetTreeOptions? options = null)
+    public Task<GetTreeResult> GetTreeAsync(BrowsingContextGetTreeOptions? options = null)
     {
         GetTreeOptions getTreeOptions = new(options)
         {

dotnet/src/webdriver/BiDi/BrowsingContext/BrowsingContextModule.cs

@@ -18,7 +18,6 @@
 // </copyright>
 
 using System;
-using System.Collections.Generic;
 using System.Threading.Tasks;
 using OpenQA.Selenium.BiDi.Communication;
 
@@ -91,13 +90,11 @@ public async Task SetViewportAsync(BrowsingContext context, SetViewportOptions?
         await Broker.ExecuteCommandAsync(new SetViewportCommand(@params), options).ConfigureAwait(false);
     }
 
-    public async Task<IReadOnlyList<BrowsingContextInfo>> GetTreeAsync(GetTreeOptions? options = null)
+    public async Task<GetTreeResult> GetTreeAsync(GetTreeOptions? options = null)
     {
         var @params = new GetTreeCommandParameters(options?.MaxDepth, options?.Root);
 
-        var getTreeResult = await Broker.ExecuteCommandAsync<GetTreeCommand, GetTreeResult>(new GetTreeCommand(@params), options).ConfigureAwait(false);
-
-        return getTreeResult.Contexts;
+        return await Broker.ExecuteCommandAsync<GetTreeCommand, GetTreeResult>(new GetTreeCommand(@params), options).ConfigureAwait(false);
     }
 
     public async Task<PrintResult> PrintAsync(BrowsingContext context, PrintOptions? options = null)