Allowing registering arbitrary schemes as supporting the fetch API.

public/web/WebSecurityPolicy.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 58 matching lines @@
 
     // Returns true if the scheme has been registered as a secure scheme.
     BLINK_EXPORT static bool shouldTreatURLSchemeAsSecure(const WebString&);
 
     // Registers a non-HTTP URL scheme which can be sent CORS requests.
     BLINK_EXPORT static void registerURLSchemeAsCORSEnabled(const WebString&);
 
     // Registers a URL scheme that can register a ServiceWorker.
     BLINK_EXPORT static void registerURLSchemeAsAllowingServiceWorkers(const WebString&);
 
+    // Registers a URL scheme that supports the Fetch API.
+    BLINK_EXPORT static void registerURLSchemeAsSupportingFetchAPI(const WebString&);
+
     // Registers a URL scheme whose resources can be loaded regardless of a page's Content Security Policy.
     BLINK_EXPORT static void registerURLSchemeAsBypassingContentSecurityPolicy(const WebString&);
 
     // Registers a URL scheme for which some kinds of resources bypass Content Security Policy.
     // This enum should be kept in sync with Source/platform/weborigin/SchemeRegistry.h.
     // Enforced in AssertMatchingEnums.cpp.
     enum PolicyAreas : uint32_t {
         PolicyAreaNone = 0,
         PolicyAreaImage = 1 << 0,
         PolicyAreaStyle = 1 << 1,
@@ skipping 27 matching lines @@
     // by bookmarklets or javascript: URLs typed in the omnibox.
     BLINK_EXPORT static void registerURLSchemeAsNotAllowingJavascriptURLs(const WebString&);
 
 private:
     WebSecurityPolicy();
 };
 
 } // namespace blink
 
 #endif