Don't create layout objects for children of display-none iframes.

third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp

Index: third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
diff --git a/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp b/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
index 1fae82c8c4a3e6370dcdf609113356638529306a..91c815e74925e2869e1520f2c856957f16b4fc02 100644
--- a/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
+++ b/third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp
@@ -889,7 +889,7 @@ void FrameLoaderClientImpl::didAddContentSecurityPolicy(
 }
 
 void FrameLoaderClientImpl::didChangeFrameOwnerProperties(
-    HTMLFrameElementBase* frameElement) {
+    HTMLFrameOwnerElement* frameElement) {
   if (!m_webFrame->client())
     return;
 
@@ -898,7 +898,8 @@ void FrameLoaderClientImpl::didChangeFrameOwnerProperties(
       WebFrameOwnerProperties(
           frameElement->scrollingMode(), frameElement->marginWidth(),
           frameElement->marginHeight(), frameElement->allowFullscreen(),
-          frameElement->csp(), frameElement->delegatedPermissions()));
+          frameElement->isDisplayNone(), frameElement->csp(),
+          frameElement->delegatedPermissions()));
 }
 
 void FrameLoaderClientImpl::dispatchWillStartUsingPeerConnectionHandler(