[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 9dce98f3392c764bd11f28fe54592aab91efe1c3..ca35278a31c306d79e4d53001a039a396a2ac6c0 100644
--- a/third_party/WebKit/public/web/WebFrameOwnerProperties.h
+++ b/third_party/WebKit/public/web/WebFrameOwnerProperties.h
@@ -22,6 +22,7 @@ struct WebFrameOwnerProperties {
   int marginHeight;
   bool allowFullscreen;
   bool allowPaymentRequest;
+  bool isDisplayNone;
   WebString requiredCsp;
 
  public:
@@ -32,7 +33,8 @@ struct WebFrameOwnerProperties {
         marginWidth(-1),
         marginHeight(-1),
         allowFullscreen(false),
-        allowPaymentRequest(false) {}
+        allowPaymentRequest(false),
+        isDisplayNone(false) {}
 
 #if INSIDE_BLINK
   WebFrameOwnerProperties(
@@ -42,6 +44,7 @@ struct WebFrameOwnerProperties {
       int marginHeight,
       bool allowFullscreen,
       bool allowPaymentRequest,
+      bool isDisplayNone,
       const WebString& requiredCsp,
       const WebVector<WebFeaturePolicyFeature>& allowedFeatures)
       : name(name),
@@ -50,6 +53,7 @@ struct WebFrameOwnerProperties {
         marginHeight(marginHeight),
         allowFullscreen(allowFullscreen),
         allowPaymentRequest(allowPaymentRequest),
+        isDisplayNone(isDisplayNone),
         requiredCsp(requiredCsp),
         allowedFeatures(allowedFeatures) {}
 #endif