Use TaskCache class from Microsoft.Extensions.TaskCache.Sources (#28)

Instead of Task.FromResult(0)

Author: pakrym

src/Microsoft.VisualStudio.Web.BrowserLink/HttpSocketAdapter.cs

@@ -6,6 +6,7 @@
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.Extensions.Internal;
 
 namespace Microsoft.VisualStudio.Web.BrowserLink
 {
@@ -388,14 +389,14 @@ private Task ReadContent()
 
                 if (String.IsNullOrEmpty(contentLengthString))
                 {
-                    return StaticTaskResult.Zero;
+                    return TaskCache.CompletedTask;
                 }
 
                 long contentLength;
 
                 if (!Int64.TryParse(contentLengthString, out contentLength))
                 {
-                    return StaticTaskResult.Zero;
+                    return TaskCache.CompletedTask;
                 }
 
                 return ReadBytesIntoResponse(contentLength);

src/Microsoft.VisualStudio.Web.BrowserLink/Project.json

@@ -14,7 +14,11 @@
   "dependencies": {
     "Microsoft.AspNetCore.Hosting.Abstractions": "1.0.0",
     "Microsoft.AspNetCore.Http.Abstractions": "1.0.0",
-    "Microsoft.Extensions.FileProviders.Physical": "1.0.0"
+    "Microsoft.Extensions.FileProviders.Physical": "1.0.0",
+    "Microsoft.Extensions.TaskCache.Sources": {
+      "version": "1.1.0-*",
+      "type": "build"
+    }
   },
   "frameworks": {
     "net451": {},

src/Microsoft.VisualStudio.Web.BrowserLink/StaticTaskResult.cs

@@ -13,7 +13,5 @@ internal static class StaticTaskResult
         public static readonly Task Complete = True;
 
         public static readonly Task<int> HttpInternalServerError = Task.FromResult(500);
-
-        public static readonly Task<int> Zero = Task.FromResult(0);
     }
 }