Started replacing UmbracoContext.HttpContext with injection of IHttpContextAccessor

src/Umbraco.Web/Install/InstallHelper.cs

@@ -18,18 +18,18 @@ namespace Umbraco.Web.Install
     {
         private static HttpClient _httpClient;
         private readonly DatabaseBuilder _databaseBuilder;
-        private readonly HttpContextBase _httpContext;
+        private readonly HttpContext _httpContext;
         private readonly ILogger _logger;
         private readonly IGlobalSettings _globalSettings;
         private readonly IUmbracoVersion _umbracoVersion;
         private readonly IConnectionStrings _connectionStrings;
         private InstallationType? _installationType;
 
-        public InstallHelper(IUmbracoContextAccessor umbracoContextAccessor,
+        public InstallHelper(IHttpContextAccessor httpContextAccessor,
             DatabaseBuilder databaseBuilder,
             ILogger logger, IGlobalSettings globalSettings, IUmbracoVersion umbracoVersion, IConnectionStrings connectionStrings)
         {
-            _httpContext = umbracoContextAccessor.UmbracoContext.HttpContext;
+            _httpContext = httpContextAccessor.HttpContext;
             _logger = logger;
             _globalSettings = globalSettings;
             _umbracoVersion = umbracoVersion;