Added preloader support for sizes based RW values

Source/core/fetch/FetchRequest.cpp

 /*
  * 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 @@
 namespace blink {
 
 FetchRequest::FetchRequest(const ResourceRequest& resourceRequest, const AtomicString& initiator, const String& charset, ResourceLoadPriority priority)
     : m_resourceRequest(resourceRequest)
     , m_charset(charset)
     , m_options(ResourceFetcher::defaultResourceOptions())
     , m_priority(priority)
     , m_forPreload(false)
     , m_defer(NoDefer)
     , m_originRestriction(UseDefaultOriginRestrictionForType)
+    , m_resourceWidth(-1)
 {
     m_options.initiatorInfo.name = initiator;
 }
 
 FetchRequest::FetchRequest(const ResourceRequest& resourceRequest, const AtomicString& initiator, const ResourceLoaderOptions& options)
     : m_resourceRequest(resourceRequest)
     , m_options(options)
     , m_priority(ResourceLoadPriorityUnresolved)
     , m_forPreload(false)
     , m_defer(NoDefer)
     , m_originRestriction(UseDefaultOriginRestrictionForType)
+    , m_resourceWidth(-1)
 {
     m_options.initiatorInfo.name = initiator;
 }
 
 FetchRequest::FetchRequest(const ResourceRequest& resourceRequest, const FetchInitiatorInfo& initiator)
     : m_resourceRequest(resourceRequest)
     , m_options(ResourceFetcher::defaultResourceOptions())
     , m_priority(ResourceLoadPriorityUnresolved)
     , m_forPreload(false)
     , m_defer(NoDefer)
     , m_originRestriction(UseDefaultOriginRestrictionForType)
+    , m_resourceWidth(-1)
 {
     m_options.initiatorInfo = initiator;
 }
 
 FetchRequest::~FetchRequest()
 {
 }
 
 void FetchRequest::setCrossOriginAccessControl(SecurityOrigin* origin, StoredCredentials allowCredentials, CredentialRequest requested)
 {
@@ skipping 10 matching lines @@
 {
     setCrossOriginAccessControl(origin, allowCredentials, allowCredentials == AllowStoredCredentials ? ClientRequestedCredentials : ClientDidNotRequestCredentials);
 }
 
 void FetchRequest::setCrossOriginAccessControl(SecurityOrigin* origin, const AtomicString& crossOriginMode)
 {
     setCrossOriginAccessControl(origin, equalIgnoringCase(crossOriginMode, "use-credentials") ? AllowStoredCredentials : DoNotAllowStoredCredentials);
 }
 
 } // namespace blink