Share schemes needed for CSP between the browser and the renderer.

third_party/WebKit/Source/platform/weborigin/SchemeRegistry.h

 /*
  * Copyright (C) 2010 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 102 matching lines @@
   static bool shouldTreatURLSchemeAsFirstPartyWhenTopLevel(
       const String& scheme);
 
   // Schemes that can be used in a referrer.
   static void registerURLSchemeAsAllowedForReferrer(const String& scheme);
   static void removeURLSchemeAsAllowedForReferrer(const String& scheme);
   static bool shouldTreatURLSchemeAsAllowedForReferrer(const String& scheme);
 
   // Allow resources from some schemes to load on a page, regardless of its
   // Content Security Policy.
-  // This enum should be kept in sync with public/web/WebSecurityPolicy.h.
-  // Enforced in AssertMatchingEnums.cpp.
   enum PolicyAreas : uint32_t {
     PolicyAreaNone = 0,
     PolicyAreaImage = 1 << 0,
     PolicyAreaStyle = 1 << 1,
     // Add more policy areas as needed by clients.
     PolicyAreaAll = ~static_cast<uint32_t>(0),
   };
   static void registerURLSchemeAsBypassingContentSecurityPolicy(
       const String& scheme,
       PolicyAreas = PolicyAreaAll);
   static void removeURLSchemeRegisteredAsBypassingContentSecurityPolicy(
       const String& scheme);
   static bool schemeShouldBypassContentSecurityPolicy(
       const String& scheme,
       PolicyAreas = PolicyAreaAll);
 
   // Schemes which bypass Secure Context checks defined in
   // https://w3c.github.io/webappsec/specs/powerfulfeatures/#is-origin-trustworthy.
   static void registerURLSchemeBypassingSecureContextCheck(
       const String& scheme);
   static bool schemeShouldBypassSecureContextCheck(const String& scheme);
 
  private:
   static const URLSchemesSet& localSchemes();
 };
 
 }  // namespace blink
 
 #endif  // SchemeRegistry_h