[1/3 blink] Support redirect option of Request and "opaqueredirect" response type.

public/platform/WebServiceWorkerResponseError.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebServiceWorkerResponseError_h
 #define WebServiceWorkerResponseError_h
 
 namespace blink {
 
 // This enum is used in UMA histograms, so don't change the order or remove
 // entries.
 enum WebServiceWorkerResponseError {
     WebServiceWorkerResponseErrorUnknown,
     WebServiceWorkerResponseErrorPromiseRejected,
     WebServiceWorkerResponseErrorDefaultPrevented,
     WebServiceWorkerResponseErrorNoV8Instance,
     WebServiceWorkerResponseErrorResponseTypeError,
     WebServiceWorkerResponseErrorResponseTypeOpaque,
     WebServiceWorkerResponseErrorResponseTypeNotBasicOrDefault,
     WebServiceWorkerResponseErrorBodyUsed,
     WebServiceWorkerResponseErrorResponseTypeOpaqueForClientRequest,
-    WebServiceWorkerResponseErrorLast = WebServiceWorkerResponseErrorResponseTypeOpaqueForClientRequest
+    WebServiceWorkerResponseErrorResponseTypeOpaqueRedirect,
+    WebServiceWorkerResponseErrorLast = WebServiceWorkerResponseErrorResponseTypeOpaqueRedirect
 };
 
 } // namespace blink
 
 #endif // WebServiceWorkerResponseError_h