Doug Bunting 53060be2d7 Content negotiation fails in subsequent requests accepting same media type ... - #3140 - clone `MediaTypeHeaderValue` instance before updating it when content negotiation succeeds - avoids changes to `MediaTypeConstants` properties and `OutputFormatter.SupportedMediaTypes` entries - `MediaTypeHeaderValue.Clone()` does not exist in our DNX Core fork of this class - in previous implementation, was called defensively rather than when required - update `WebApiCompatShimBasicTest` functional tests to use `MvcTestFixture<TStartup>` everywhere - #3140 blocked that final migration - remove `TestHelper` since it's no longer referenced nits: - remove comments mentioning `TestHelper` - correct spelling of "negotiation"		2015-10-30 14:10:31 -07:00
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HttpRequestMessageController.cs	Content negotiation fails in subsequent requests accepting same media type	2015-10-30 14:10:31 -07:00