WebURLRequest: Track the requesting document's URL through navigations.

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 147 matching lines @@
 
     BLINK_PLATFORM_EXPORT bool isNull() const;
 
     BLINK_PLATFORM_EXPORT WebURL url() const;
     BLINK_PLATFORM_EXPORT void setURL(const WebURL&);
 
     // Used to implement third-party cookie blocking.
     BLINK_PLATFORM_EXPORT WebURL firstPartyForCookies() const;
     BLINK_PLATFORM_EXPORT void setFirstPartyForCookies(const WebURL&);
 
+    // The origin of the execution context which originated the request. Used to
+    // implement First-Party-Only cookie restrictions.
+    BLINK_PLATFORM_EXPORT WebURL requestorURL() const;

[jochen (gone - plz use gerrit), 2015/04/13 13:07:02]

does the full URL actually matter (i.e. do you need username/password, reference
fragment, and query string, or just the security origin)?

[Mike West, 2015/04/21 12:46:23]

Origin would be fine, now that you mention it. I'll make that change.

+    BLINK_PLATFORM_EXPORT void setRequestorURL(const WebURL&);
+
     // Controls whether user name, password, and cookies may be sent with the
     // request. (If false, this overrides allowCookies.)
     BLINK_PLATFORM_EXPORT bool allowStoredCredentials() const;
     BLINK_PLATFORM_EXPORT void setAllowStoredCredentials(bool);
 
     BLINK_PLATFORM_EXPORT CachePolicy cachePolicy() const;
     BLINK_PLATFORM_EXPORT void setCachePolicy(CachePolicy);
 
     BLINK_PLATFORM_EXPORT WebString httpMethod() const;
     BLINK_PLATFORM_EXPORT void setHTTPMethod(const WebString&);
@@ skipping 114 matching lines @@
 protected:
     BLINK_PLATFORM_EXPORT void assign(WebURLRequestPrivate*);
 
 private:
     WebURLRequestPrivate* m_private;
 };
 
 } // namespace blink
 
 #endif