Add missing API for Browser

[Clounea]

Summary

When I try the IHttpModule and HttpApplication in the adapter, I found that some properties of HttpBrowserCapabilities are used in my module(in Sharepoint Online) but they are not supported.

Motivation and goals

Some properties of HttpBrowserCapabilities are used in my module(in Sharepoint Online) but they are not supported. I wonder if there is plan to support the API.

In scope

HttpBrowserCapabilities.Type
HttpBrowserCapabilities.this[]
HttpCapabilitiesBase.PreferredRequestEncoding

Usage example:

HttpBrowserCapabilities.Type

String.IsNullOrEmpty(request.Browser.Type)

HttpBrowserCapabilities.this[]

context.Request.Browser["needsRedirect"]  is true

HttpCapabilitiesBase.PreferredRequestEncoding

context.Request.ContentEncoding = context.Request.Browser.PreferredRequestEncoding

[joperezr]

@twsouthwick mentioned that he has an implementation for this that has been shared. It will be good to get a confirmation to see if this works as expected. There is also the question of how much of Browser actually works.