Introduce "navigate" mode in 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 96 matching lines @@
         FrameTypeAuxiliary,
         FrameTypeNested,
         FrameTypeNone,
         FrameTypeTopLevel
     };
 
     enum FetchRequestMode {
         FetchRequestModeSameOrigin,
         FetchRequestModeNoCORS,
         FetchRequestModeCORS,
-        FetchRequestModeCORSWithForcedPreflight
+        FetchRequestModeCORSWithForcedPreflight,
+        FetchRequestModeNavigate

[philipj_slow, 2015/10/20 08:00:32]

Here and elsewhere, can you use the same order as in the spec, that is
"navigate" before "same-origin"?

[shiva.jm, 2015/10/21 08:34:59]

We thought of having same order as in spec, but discussed in comments:
https://codereview.chromium.org/1391583002/#msg10,
Since, We are collecting the user metrics of the request modes,
So we don't want to change the order of values.

[philipj_slow, 2015/10/21 09:10:02]

Acknowledged.

     };
 
     enum FetchCredentialsMode {
         FetchCredentialsModeOmit,
         FetchCredentialsModeSameOrigin,
         FetchCredentialsModeInclude
     };
 
     enum FetchRedirectMode {
         FetchRedirectModeFollow,
@@ skipping 180 matching lines @@
 protected:
     BLINK_PLATFORM_EXPORT void assign(WebURLRequestPrivate*);
 
 private:
     WebURLRequestPrivate* m_private;
 };
 
 } // namespace blink
 
 #endif