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

third_party/WebKit/Source/core/html/HTMLFrameElementBase.cpp

Index: third_party/WebKit/Source/core/html/HTMLFrameElementBase.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLFrameElementBase.cpp b/third_party/WebKit/Source/core/html/HTMLFrameElementBase.cpp
index c479370067dd6921859c7bc62154420ba8735b8f..e4220b0b5b1494729f2daa86f1eb9b9e50c45ba1 100644
--- a/third_party/WebKit/Source/core/html/HTMLFrameElementBase.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLFrameElementBase.cpp
@@ -121,6 +121,13 @@
   toLocalFrame(contentFrame())
       ->script()
       .executeScriptIfJavaScriptURL(scriptURL, this);
+}
+
+void HTMLFrameElementBase::frameOwnerPropertiesChanged() {
+  // Don't notify about updates if contentFrame() is null, for example when
+  // the subframe hasn't been created yet.
+  if (contentFrame())
+    document().frame()->loader().client()->didChangeFrameOwnerProperties(this);
 }
 
 void HTMLFrameElementBase::parseAttribute(
@@ -258,7 +265,7 @@
 
   if (contentDocument()) {
     contentDocument()->willChangeFrameOwnerProperties(
-        m_marginWidth, m_marginHeight, scrollbarMode, isDisplayNone());
+        m_marginWidth, m_marginHeight, scrollbarMode);
   }
   m_scrollingMode = scrollbarMode;
   frameOwnerPropertiesChanged();
@@ -270,7 +277,7 @@
 
   if (contentDocument()) {
     contentDocument()->willChangeFrameOwnerProperties(
-        marginWidth, m_marginHeight, m_scrollingMode, isDisplayNone());
+        marginWidth, m_marginHeight, m_scrollingMode);
   }
   m_marginWidth = marginWidth;
   frameOwnerPropertiesChanged();
@@ -282,7 +289,7 @@
 
   if (contentDocument()) {
     contentDocument()->willChangeFrameOwnerProperties(
-        m_marginWidth, marginHeight, m_scrollingMode, isDisplayNone());
+        m_marginWidth, marginHeight, m_scrollingMode);
   }
   m_marginHeight = marginHeight;
   frameOwnerPropertiesChanged();