[Reland #1] Don't create layout objects for children of display-none iframes.

third_party/WebKit/public/web/WebFrameOwnerProperties.h

Index: third_party/WebKit/public/web/WebFrameOwnerProperties.h
diff --git a/third_party/WebKit/public/web/WebFrameOwnerProperties.h b/third_party/WebKit/public/web/WebFrameOwnerProperties.h
index 5ba8d741452c0cd03e6bcd0a8fc674957c44ba90..e047c8617a1e0ec31e8e6529542f9629fc57a3bf 100644
--- a/third_party/WebKit/public/web/WebFrameOwnerProperties.h
+++ b/third_party/WebKit/public/web/WebFrameOwnerProperties.h
@@ -23,6 +23,7 @@ struct WebFrameOwnerProperties {
   int marginHeight;
   bool allowFullscreen;
   bool allowPaymentRequest;
+  bool isDisplayNone;
   WebString requiredCsp;
   WebVector<mojom::PermissionName> delegatedPermissions;
 
@@ -34,7 +35,8 @@ struct WebFrameOwnerProperties {
         marginWidth(-1),
         marginHeight(-1),
         allowFullscreen(false),
-        allowPaymentRequest(false) {}
+        allowPaymentRequest(false),
+        isDisplayNone(false) {}
 
 #if INSIDE_BLINK
   WebFrameOwnerProperties(
@@ -44,6 +46,7 @@ struct WebFrameOwnerProperties {
       int marginHeight,
       bool allowFullscreen,
       bool allowPaymentRequest,
+      bool isDisplayNone,
       const WebString& requiredCsp,
       const WebVector<mojom::PermissionName>& delegatedPermissions,
       const WebVector<WebFeaturePolicyFeature>& allowedFeatures)
@@ -53,6 +56,7 @@ struct WebFrameOwnerProperties {
         marginHeight(marginHeight),
         allowFullscreen(allowFullscreen),
         allowPaymentRequest(allowPaymentRequest),
+        isDisplayNone(isDisplayNone),
         requiredCsp(requiredCsp),
         delegatedPermissions(delegatedPermissions),
         allowedFeatures(allowedFeatures) {}