Document FetchRequest class

third_party/WebKit/Source/core/fetch/FetchRequest.h

 /*
  * Copyright (C) 2012 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 21 matching lines @@
 #include "core/fetch/IntegrityMetadata.h"
 #include "core/fetch/ResourceLoaderOptions.h"
 #include "platform/CrossOriginAttributeValue.h"
 #include "platform/network/ResourceRequest.h"
 #include "wtf/Allocator.h"
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 class SecurityOrigin;
 
+// A FetchRequest is a "parameter object" for ResourceFetcher::requestResource
+// to avoid the method having too many arguments.
 class CORE_EXPORT FetchRequest {
   STACK_ALLOCATED();
 
  public:
   enum DeferOption { NoDefer, LazyLoad, IdleLoad };
   enum OriginRestriction {
     UseDefaultOriginRestrictionForType,
     RestrictToSameOrigin,
     NoOriginRestriction
   };
@@ skipping 100 matching lines @@
   DeferOption m_defer;
   OriginRestriction m_originRestriction;
   ResourceWidth m_resourceWidth;
   ClientHintsPreferences m_clientHintPreferences;
   PlaceholderImageRequestType m_placeholderImageRequestType;
 };
 
 }  // namespace blink
 
 #endif