Make prepareRequest() a separate callback of FetchContext

third_party/WebKit/Source/platform/loader/fetch/ResourceLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2007 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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.
@@ skipping 201 matching lines @@
     }
   }
 
   bool crossOrigin = !SecurityOrigin::areSameSchemeHostPort(
       redirectResponse.url(), newRequest.url());
   m_fetcher->recordResourceTimingOnRedirect(m_resource.get(), redirectResponse,
                                             crossOrigin);
 
   newRequest.setAllowStoredCredentials(m_resource->options().allowCredentials ==
                                        AllowStoredCredentials);
-
+  context().prepareRequest(newRequest,
+                           FetchContext::RedirectType::kForRedirect);
   context().dispatchWillSendRequest(m_resource->identifier(), newRequest,
                                     redirectResponse,
                                     m_resource->options().initiatorInfo);
 
   // ResourceFetcher::willFollowRedirect() may rewrite the URL to
   // something else not for rejecting redirect but for other reasons.
   // E.g. WebFrameTestClient::willSendRequest() and
   // RenderFrameImpl::willSendRequest(). We should reflect the
   // rewriting but currently we cannot. So, return false to make the
   // redirect fail.
@@ skipping 286 matching lines @@
     return;
 
   // Don't activate if cache policy is explicitly set.
   if (request.getCachePolicy() != WebCachePolicy::UseProtocolCachePolicy)
     return;
 
   m_isCacheAwareLoadingActivated = true;
 }
 
 }  // namespace blink