(blink) Propagate scrolling/marginwidth/marginheight property values to child frame.

Source/web/WebFrame.cpp

Index: Source/web/WebFrame.cpp
diff --git a/Source/web/WebFrame.cpp b/Source/web/WebFrame.cpp
index 98042f6431e1ae83107a2ba1ef6af0f1cef8498a..bf616f0629db22a42352d610f2714fc973809b20 100644
--- a/Source/web/WebFrame.cpp
+++ b/Source/web/WebFrame.cpp
@@ -136,6 +136,30 @@ void WebFrame::setFrameOwnerSandboxFlags(WebSandboxFlags flags)
     toRemoteBridgeFrameOwner(owner)->setSandboxFlags(static_cast<SandboxFlags>(flags));
 }
 
+void WebFrame::setFrameOwnerProperties(const WebFrameOwnerProperties& frameOwnerProperties)
+{
+    FrameOwner* owner = toCoreFrame(this)->owner();
+    if (!owner)
+        return;
+
+    ScrollbarMode scrollbarMode = ScrollbarAuto;
+    switch (frameOwnerProperties.scrollingMode) {
+    case WebFrameOwnerProperties::ScrollingModeAuto:
+        scrollbarMode = ScrollbarAuto;
+        break;
+    case WebFrameOwnerProperties::ScrollingModeAlwaysOff:
+        scrollbarMode = ScrollbarAlwaysOff;
+        break;
+    case WebFrameOwnerProperties::ScrollingModeAlwaysOn:
+        scrollbarMode = ScrollbarAlwaysOn;
+        break;
+    }
+    toRemoteBridgeFrameOwner(owner)->setScrollingMode(scrollbarMode);
+
+    toRemoteBridgeFrameOwner(owner)->setMarginWidth(frameOwnerProperties.marginWidth);
+    toRemoteBridgeFrameOwner(owner)->setMarginHeight(frameOwnerProperties.marginHeight);
+}
+
 WebFrame* WebFrame::opener() const
 {
     return m_opener;