(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 cb6856a7f03c5e35f56726b814796aaf046e1233..544b82e9416805c830abfec71b66b0f33a19f465 100644
--- a/Source/web/FrameLoaderClientImpl.cpp
+++ b/Source/web/FrameLoaderClientImpl.cpp
@@ -843,6 +843,27 @@ void FrameLoaderClientImpl::didChangeSandboxFlags(Frame* childFrame, SandboxFlag
     m_webFrame->client()->didChangeSandboxFlags(WebFrame::fromFrame(childFrame), static_cast<WebSandboxFlags>(flags));
 }
 
+void FrameLoaderClientImpl::didChangeScrollingMode(Frame* childFrame, ScrollbarMode scrollingMode)
+{
+    if (!m_webFrame->client())
+        return;
+
+    m_webFrame->client()->didChangeScrollingMode(WebFrame::fromFrame(childFrame), static_cast<WebFrameOwnerProperties::ScrollingMode>(scrollingMode));
+}
+
+void FrameLoaderClientImpl::didChangeMarginWidth(Frame* childFrame, int newMarginWidth)
+{
+    if (m_webFrame->client())
+        m_webFrame->client()->didChangeMarginWidth(WebFrame::fromFrame(childFrame), newMarginWidth);
+}
+
+void FrameLoaderClientImpl::didChangeMarginHeight(Frame* childFrame, int newMarginHeight)
+{
+    if (m_webFrame->client())
+        m_webFrame->client()->didChangeMarginHeight(WebFrame::fromFrame(childFrame), newMarginHeight);
+}
+
+
 void FrameLoaderClientImpl::dispatchWillOpenWebSocket(WebSocketHandle* handle)
 {
     m_webFrame->client()->willOpenWebSocket(handle);