Don't try to guess the referrer policy, but use the one associated with the request

content/renderer/internal_document_state_data.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/internal_document_state_data.h"
 
 #include "content/public/renderer/document_state.h"
 #include "third_party/WebKit/public/web/WebDataSource.h"
 
 namespace content {
 
 namespace {
 
 // Key InternalDocumentStateData is stored under in DocumentState.
 const char kUserDataKey[] = "InternalDocumentStateData";
 
 }
 
 InternalDocumentStateData::InternalDocumentStateData()
     : did_first_visually_non_empty_layout_(false),
       did_first_visually_non_empty_paint_(false),
       http_status_code_(0),
       use_error_page_(false),
       is_overriding_user_agent_(false),
       must_reset_scroll_and_scale_state_(false),
       cache_policy_override_set_(false),
-      cache_policy_override_(blink::WebURLRequest::UseProtocolCachePolicy),
-      referrer_policy_set_(false),
-      referrer_policy_(blink::WebReferrerPolicyDefault) {
+      cache_policy_override_(blink::WebURLRequest::UseProtocolCachePolicy) {
 }
 
 // static
 InternalDocumentStateData* InternalDocumentStateData::FromDataSource(
     blink::WebDataSource* ds) {
   return FromDocumentState(static_cast<DocumentState*>(ds->extraData()));
 }
 
 // static
 InternalDocumentStateData* InternalDocumentStateData::FromDocumentState(
     DocumentState* ds) {
   if (!ds)
     return NULL;
   InternalDocumentStateData* data = static_cast<InternalDocumentStateData*>(
       ds->GetUserData(&kUserDataKey));
   if (!data) {
     data = new InternalDocumentStateData;
     ds->SetUserData(&kUserDataKey, data);
   }
   return data;
 }
 
 InternalDocumentStateData::~InternalDocumentStateData() {
 }
 
 }  // namespace content