Added preloader support for sizes based RW values

Source/core/fetch/FetchRequest.h

Index: Source/core/fetch/FetchRequest.h
diff --git a/Source/core/fetch/FetchRequest.h b/Source/core/fetch/FetchRequest.h
index d7701d5d635ae40da2edbe773f2b3f4d16dd0235..bce9277c9b6e0cef1fcf60f1606a9188a7858f0d 100644
--- a/Source/core/fetch/FetchRequest.h
+++ b/Source/core/fetch/FetchRequest.h
@@ -56,6 +56,7 @@ public:
     bool forPreload() const { return m_forPreload; }
     void setForPreload(bool forPreload) { m_forPreload = forPreload; }
     DeferOption defer() const { return m_defer; }
+    int resourceWidth() const { return m_resourceWidth; }
     void setDefer(DeferOption defer) { m_defer = defer; }
     void setContentSecurityCheck(ContentSecurityPolicyDisposition contentSecurityPolicyOption) { m_options.contentSecurityPolicyOption = contentSecurityPolicyOption; }
     void setCrossOriginAccessControl(SecurityOrigin*, StoredCredentials, CredentialRequest);
@@ -63,6 +64,7 @@ public:
     void setCrossOriginAccessControl(SecurityOrigin*, const AtomicString& crossOriginMode);
     OriginRestriction originRestriction() const { return m_originRestriction; }
     void setOriginRestriction(OriginRestriction restriction) { m_originRestriction = restriction; }
+    void setResourceWidth(int resourceWidth) { m_resourceWidth = resourceWidth; }
 
 private:
     ResourceRequest m_resourceRequest;
@@ -72,6 +74,7 @@ private:
     bool m_forPreload;
     DeferOption m_defer;
     OriginRestriction m_originRestriction;
+    int m_resourceWidth;
 };
 
 } // namespace blink