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

Source/web/FrameLoaderClientImpl.cpp

Index: Source/web/FrameLoaderClientImpl.cpp
diff --git a/Source/web/FrameLoaderClientImpl.cpp b/Source/web/FrameLoaderClientImpl.cpp
index c656866bd5811da641635f41935938a3c0880872..814b0a94759395241e3175112af5711fa72767ea 100644
--- a/Source/web/FrameLoaderClientImpl.cpp
+++ b/Source/web/FrameLoaderClientImpl.cpp
@@ -846,6 +846,14 @@ void FrameLoaderClientImpl::didChangeSandboxFlags(Frame* childFrame, SandboxFlag
     m_webFrame->client()->didChangeSandboxFlags(WebFrame::fromFrame(childFrame), static_cast<WebSandboxFlags>(flags));
 }
 
+void FrameLoaderClientImpl::didChangeFrameOwnerProperties(Frame* childFrame, ScrollbarMode scrollingMode, int marginWidth, int marginHeight)
+{
+    if (!m_webFrame->client())
+        return;
+
+    m_webFrame->client()->didChangeFrameOwnerProperties(WebFrame::fromFrame(childFrame), WebFrameOwnerProperties(static_cast<WebFrameOwnerProperties::ScrollingMode>(scrollingMode), marginWidth, marginHeight));
+}
+
 void FrameLoaderClientImpl::dispatchWillOpenWebSocket(WebSocketHandle* handle)
 {
     m_webFrame->client()->willOpenWebSocket(handle);