Make HttpConnectionFactory public (#11702)

- Move HttpConnectionFactory to the Http.Connections.Client assembly

src/SignalR/clients/csharp/Http.Connections.Client/ref/Microsoft.AspNetCore.Http.Connections.Client.csproj

@@ -7,10 +7,12 @@
     <Compile Include="Microsoft.AspNetCore.Http.Connections.Client.netstandard2.0.cs" />
     <Reference Include="Microsoft.AspNetCore.Http.Connections.Common"  />
     <Reference Include="Microsoft.Extensions.Logging.Abstractions"  />
+    <Reference Include="Microsoft.Extensions.Options"  />
   </ItemGroup>
 <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.1'">
     <Compile Include="Microsoft.AspNetCore.Http.Connections.Client.netstandard2.1.cs" />
     <Reference Include="Microsoft.AspNetCore.Http.Connections.Common"  />
     <Reference Include="Microsoft.Extensions.Logging.Abstractions"  />
+    <Reference Include="Microsoft.Extensions.Options"  />
   </ItemGroup>
 </Project>

src/SignalR/clients/csharp/Http.Connections.Client/ref/Microsoft.AspNetCore.Http.Connections.Client.netstandard2.0.cs

@@ -20,6 +20,12 @@ namespace Microsoft.AspNetCore.Http.Connections.Client
         public System.Threading.Tasks.Task StartAsync(Microsoft.AspNetCore.Connections.TransferFormat transferFormat, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public System.Threading.Tasks.Task StartAsync(System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
     }
+    public partial class HttpConnectionFactory : Microsoft.AspNetCore.Connections.IConnectionFactory
+    {
+        public HttpConnectionFactory(Microsoft.Extensions.Options.IOptions<Microsoft.AspNetCore.Http.Connections.Client.HttpConnectionOptions> options, Microsoft.Extensions.Logging.ILoggerFactory loggerFactory) { }
+        [System.Diagnostics.DebuggerStepThroughAttribute]
+        public System.Threading.Tasks.ValueTask<Microsoft.AspNetCore.Connections.ConnectionContext> ConnectAsync(System.Net.EndPoint endPoint, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+    }
     public partial class HttpConnectionOptions
     {
         public HttpConnectionOptions() { }

src/SignalR/clients/csharp/Http.Connections.Client/ref/Microsoft.AspNetCore.Http.Connections.Client.netstandard2.1.cs

@@ -20,6 +20,12 @@ namespace Microsoft.AspNetCore.Http.Connections.Client
         public System.Threading.Tasks.Task StartAsync(Microsoft.AspNetCore.Connections.TransferFormat transferFormat, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public System.Threading.Tasks.Task StartAsync(System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
     }
+    public partial class HttpConnectionFactory : Microsoft.AspNetCore.Connections.IConnectionFactory
+    {
+        public HttpConnectionFactory(Microsoft.Extensions.Options.IOptions<Microsoft.AspNetCore.Http.Connections.Client.HttpConnectionOptions> options, Microsoft.Extensions.Logging.ILoggerFactory loggerFactory) { }
+        [System.Diagnostics.DebuggerStepThroughAttribute]
+        public System.Threading.Tasks.ValueTask<Microsoft.AspNetCore.Connections.ConnectionContext> ConnectAsync(System.Net.EndPoint endPoint, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
+    }
     public partial class HttpConnectionOptions
     {
         public HttpConnectionOptions() { }

src/SignalR/clients/csharp/Http.Connections.Client/src/HttpConnectionFactory.cs

@@ -6,16 +6,15 @@ using System.Net;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Connections;
-using Microsoft.AspNetCore.Http.Connections.Client;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 
-namespace Microsoft.AspNetCore.SignalR.Client
+namespace Microsoft.AspNetCore.Http.Connections.Client
 {
     /// <summary>
     /// A factory for creating <see cref="HttpConnection"/> instances.
     /// </summary>
-    internal class HttpConnectionFactory : IConnectionFactory
+    public class HttpConnectionFactory : IConnectionFactory
     {
         private readonly HttpConnectionOptions _httpConnectionOptions;
         private readonly ILoggerFactory _loggerFactory;

src/SignalR/clients/csharp/Http.Connections.Client/src/Microsoft.AspNetCore.Http.Connections.Client.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <Description>Client for ASP.NET Core Connection Handlers</Description>
@@ -17,6 +17,7 @@
   <ItemGroup>
     <Reference Include="Microsoft.AspNetCore.Http.Connections.Common" />
     <Reference Include="Microsoft.Extensions.Logging.Abstractions" />
+    <Reference Include="Microsoft.Extensions.Options" />
   </ItemGroup>
 
   <ItemGroup>