CORS-RFC1918: Teach ResourceRequest about "external" requests

third_party/WebKit/public/platform/WebURLRequest.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 46 matching lines @@
 
     enum Priority {
         PriorityUnresolved = -1,
         PriorityVeryLow,
         PriorityLow,
         PriorityMedium,
         PriorityHigh,
         PriorityVeryHigh,
     };
 
+    // The ordering is important, as it's used to determine whether preflights are required,
+    // as per https://mikewest.github.io/cors-rfc1918/#framework
+    enum AddressSpace {
+        AddressSpaceLocal = 0, // loopback, link local
+        AddressSpacePrivate, // Reserved by RFC1918
+        AddressSpacePublic // Everything else
+    };
+
     // Corresponds to Fetch's "context": http://fetch.spec.whatwg.org/#concept-request-context
     enum RequestContext {
         RequestContextUnspecified = 0,
         RequestContextAudio,
         RequestContextBeacon,
         RequestContextCSPReport,
         RequestContextDownload,
         RequestContextEmbed,
         RequestContextEventSource,
         RequestContextFavicon,
@@ skipping 223 matching lines @@
     BLINK_PLATFORM_EXPORT void setCheckForBrowserSideNavigation(bool);
 
     // This is used to report navigation metrics starting from the UI action
     // that triggered the navigation (which can be different from the navigation
     // start time used in the Navigation Timing API).
     BLINK_PLATFORM_EXPORT double uiStartTime() const;
     BLINK_PLATFORM_EXPORT void setUiStartTime(double);
     BLINK_PLATFORM_EXPORT WebURLRequest::InputToLoadPerfMetricReportPolicy inputPerfMetricReportPolicy() const;
     BLINK_PLATFORM_EXPORT void setInputPerfMetricReportPolicy(WebURLRequest::InputToLoadPerfMetricReportPolicy);
 
-    // Does the request originate from a SecurityContext hosted in a reserved
-    // (RFC1918) IP range?
-    BLINK_PLATFORM_EXPORT bool originatesFromReservedIPRange() const;
-    BLINK_PLATFORM_EXPORT void setOriginatesFromReservedIPRange(bool);
+    // https://mikewest.github.io/cors-rfc1918/#external-request
+    BLINK_PLATFORM_EXPORT bool isExternalRequest() const;
 
 #if INSIDE_BLINK
     BLINK_PLATFORM_EXPORT ResourceRequest& toMutableResourceRequest();
     BLINK_PLATFORM_EXPORT const ResourceRequest& toResourceRequest() const;
 #endif
 
 protected:
     BLINK_PLATFORM_EXPORT void assign(WebURLRequestPrivate*);
 
 private:
     WebURLRequestPrivate* m_private;
 };
 
 } // namespace blink
 
 #endif