Refactor the forPreload flag to mean speculative preload.

third_party/WebKit/Source/core/html/parser/CSSPreloadScanner.cpp

 /*
  * Copyright (C) 2008, 2010 Apple Inc. All Rights Reserved.
  * Copyright (C) 2009 Torch Mobile, Inc. http://www.torchmobile.com/
  * Copyright (C) 2010 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 80 matching lines @@
 }
 
 void CSSPreloadScanner::setReferrerPolicy(const ReferrerPolicy policy) {
   m_referrerPolicy = policy;
 }
 
 inline void CSSPreloadScanner::tokenize(UChar c,
                                         const SegmentedString& source) {
   // We are just interested in @import rules, no need for real tokenization here
   // Searching for other types of resources is probably low payoff.
+  // If we ever decide to preload fonts, we also need to change
+  // ResourceFetcher::resourceNeedsLoad to immediately load speculative font
+  // preloads.
   switch (m_state) {
     case Initial:
       if (isHTMLSpace<UChar>(c))
         break;
       if (c == '@')
         m_state = RuleStart;
       else if (c == '/')
         m_state = MaybeComment;
       else
         m_state = DoneParsingImportRules;
@@ skipping 232 matching lines @@
   m_resource.clear();
 }
 
 DEFINE_TRACE(CSSPreloaderResourceClient) {
   visitor->trace(m_preloader);
   visitor->trace(m_resource);
   StyleSheetResourceClient::trace(visitor);
 }
 
 }  // namespace blink