Add AuthenticationManager.HttpContext. Clean up contructors.

samples/SampleApp/PooledHttpContext.cs

@@ -21,11 +21,11 @@ namespace SampleApp
         {
             if (_pooledHttpRequest != null)
             {
-                _pooledHttpRequest.Initialize(this, Features);
+                _pooledHttpRequest.Initialize(this);
                 return _pooledHttpRequest;
             }
 
-            return new DefaultHttpRequest(this, Features);
+            return new DefaultHttpRequest(this);
         }
 
         protected override void UninitializeHttpRequest(HttpRequest instance)
@@ -38,11 +38,11 @@ namespace SampleApp
         {
             if (_pooledHttpResponse != null)
             {
-                _pooledHttpResponse.Initialize(this, Features);
+                _pooledHttpResponse.Initialize(this);
                 return _pooledHttpResponse;
             }
 
-            return new DefaultHttpResponse(this, Features);
+            return new DefaultHttpResponse(this);
         }
 
         protected override void UninitializeHttpResponse(HttpResponse instance)

src/Microsoft.AspNetCore.Http.Abstractions/Authentication/AuthenticationManager.cs

@@ -16,6 +16,8 @@ namespace Microsoft.AspNetCore.Http.Authentication
         /// </summary>
         public const string AutomaticScheme = "Automatic";
 
+        public abstract HttpContext HttpContext { get; }
+
         public abstract IEnumerable<AuthenticationDescription> GetAuthenticationSchemes();
 
         public abstract Task AuthenticateAsync(AuthenticateContext context);

src/Microsoft.AspNetCore.Http/Authentication/DefaultAuthenticationManager.cs

@@ -14,16 +14,18 @@ namespace Microsoft.AspNetCore.Http.Authentication.Internal
 {
     public class DefaultAuthenticationManager : AuthenticationManager
     {
+        private HttpContext _context;
         private FeatureReferences<IHttpAuthenticationFeature> _features;
 
-        public DefaultAuthenticationManager(IFeatureCollection features)
+        public DefaultAuthenticationManager(HttpContext context)
         {
-            Initialize(features);
+            Initialize(context);
         }
 
-        public virtual void Initialize(IFeatureCollection features)
+        public virtual void Initialize(HttpContext context)
         {
-            _features = new FeatureReferences<IHttpAuthenticationFeature>(features);
+            _context = context;
+            _features = new FeatureReferences<IHttpAuthenticationFeature>(context.Features);
         }
 
         public virtual void Uninitialize()
@@ -31,6 +33,8 @@ namespace Microsoft.AspNetCore.Http.Authentication.Internal
             _features = default(FeatureReferences<IHttpAuthenticationFeature>);
         }
 
+        public override HttpContext HttpContext => _context;
+
         private IHttpAuthenticationFeature HttpAuthenticationFeature =>
             _features.Fetch(ref _features.Cache, f => new HttpAuthenticationFeature());
 

src/Microsoft.AspNetCore.Http/DefaultHttpContext.cs

@@ -173,16 +173,16 @@ namespace Microsoft.AspNetCore.Http.Internal
         }
 
 
-        protected virtual HttpRequest InitializeHttpRequest() => new DefaultHttpRequest(this, Features);
+        protected virtual HttpRequest InitializeHttpRequest() => new DefaultHttpRequest(this);
         protected virtual void UninitializeHttpRequest(HttpRequest instance) { }
 
-        protected virtual HttpResponse InitializeHttpResponse() => new DefaultHttpResponse(this, Features);
+        protected virtual HttpResponse InitializeHttpResponse() => new DefaultHttpResponse(this);
         protected virtual void UninitializeHttpResponse(HttpResponse instance) { }
 
         protected virtual ConnectionInfo InitializeConnectionInfo() => new DefaultConnectionInfo(Features);
         protected virtual void UninitializeConnectionInfo(ConnectionInfo instance) { }
 
-        protected virtual AuthenticationManager InitializeAuthenticationManager() => new DefaultAuthenticationManager(Features);
+        protected virtual AuthenticationManager InitializeAuthenticationManager() => new DefaultAuthenticationManager(this);
         protected virtual void UninitializeAuthenticationManager(AuthenticationManager instance) { }
 
         protected virtual WebSocketManager InitializeWebSocketManager() => new DefaultWebSocketManager(Features);

src/Microsoft.AspNetCore.Http/DefaultHttpRequest.cs

@@ -16,15 +16,15 @@ namespace Microsoft.AspNetCore.Http.Internal
         private HttpContext _context;
         private FeatureReferences<FeatureInterfaces> _features;
 
-        public DefaultHttpRequest(HttpContext context, IFeatureCollection features)
+        public DefaultHttpRequest(HttpContext context)
         {
-            Initialize(context, features);
+            Initialize(context);
         }
 
-        public virtual void Initialize(HttpContext context, IFeatureCollection features)
+        public virtual void Initialize(HttpContext context)
         {
             _context = context;
-            _features = new FeatureReferences<FeatureInterfaces>(features);
+            _features = new FeatureReferences<FeatureInterfaces>(context.Features);
         }
 
         public virtual void Uninitialize()

src/Microsoft.AspNetCore.Http/DefaultHttpResponse.cs

@@ -15,15 +15,15 @@ namespace Microsoft.AspNetCore.Http.Internal
         private HttpContext _context;
         private FeatureReferences<FeatureInterfaces> _features;
 
-        public DefaultHttpResponse(HttpContext context, IFeatureCollection features)
+        public DefaultHttpResponse(HttpContext context)
         {
-            Initialize(context, features);
+            Initialize(context);
         }
 
-        public virtual void Initialize(HttpContext context, IFeatureCollection features)
+        public virtual void Initialize(HttpContext context)
         {
             _context = context;
-            _features = new FeatureReferences<FeatureInterfaces>(features);
+            _features = new FeatureReferences<FeatureInterfaces>(context.Features);
         }
 
         public virtual void Uninitialize()