Use Referrer-Policy headers for CSS stylesheets

third_party/WebKit/Source/core/html/LinkStyle.cpp

 // Copyright 2016 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 "core/html/LinkStyle.h"
 
 #include "core/css/StyleSheetContents.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/LocalFrameClient.h"
 #include "core/frame/SubresourceIntegrity.h"
@@ skipping 37 matching lines @@
 enum StyleSheetCacheStatus {
   StyleSheetNewEntry,
   StyleSheetInDiskCache,
   StyleSheetInMemoryCache,
   StyleSheetCacheStatusCount,
 };
 
 void LinkStyle::setCSSStyleSheet(
     const String& href,
     const KURL& baseURL,
+    ReferrerPolicy referrerPolicy,
     const String& charset,
     const CSSStyleSheetResource* cachedStyleSheet) {
   if (!m_owner->isConnected()) {
     // While the stylesheet is asynchronously loading, the owner can be
     // disconnected from a document.
     // In that case, cancel any processing on the loaded content.
     m_loading = false;
     removePendingSheet();
     if (m_sheet)
       clearSheet();
@@ skipping 35 matching lines @@
     if (disposition == ResourceIntegrityDisposition::Failed) {
       m_loading = false;
       removePendingSheet();
       notifyLoadedSheetAndAllCriticalSubresources(
           Node::ErrorOccurredLoadingSubresource);
       return;
     }
   }
 
   CSSParserContext* parserContext = CSSParserContext::create(
-      m_owner->document(), baseURL, m_owner->document().getReferrerPolicy(),
-      charset);
+      m_owner->document(), baseURL, referrerPolicy, charset);
 
   DEFINE_STATIC_LOCAL(EnumerationHistogram, restoredCachedStyleSheetHistogram,
                       ("Blink.RestoredCachedStyleSheet", 2));
   DEFINE_STATIC_LOCAL(
       EnumerationHistogram, restoredCachedStyleSheet2Histogram,
       ("Blink.RestoredCachedStyleSheet2", StyleSheetCacheStatusCount));
 
   if (StyleSheetContents* restoredSheet =
           const_cast<CSSStyleSheetResource*>(cachedStyleSheet)
               ->restoreParsedStyleSheet(parserContext)) {
@@ skipping 293 matching lines @@
     removePendingSheet();
 }
 
 DEFINE_TRACE(LinkStyle) {
   visitor->trace(m_sheet);
   LinkResource::trace(visitor);
   ResourceOwner<StyleSheetResource>::trace(visitor);
 }
 
 }  // namespace blink