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

public/web/WebFrame.h

Index: public/web/WebFrame.h
diff --git a/public/web/WebFrame.h b/public/web/WebFrame.h
index ee3a1b42d12eff522d8215da2f6f4b6c8d6d71c3..2db185d25f423b8fe4e782a75e8a7be1363655fd 100644
--- a/public/web/WebFrame.h
+++ b/public/web/WebFrame.h
@@ -80,6 +80,7 @@ struct WebConsoleMessage;
 struct WebFindOptions;
 struct WebFloatPoint;
 struct WebFloatRect;
+struct WebFrameOwnerProperties;
 struct WebPoint;
 struct WebPrintParams;
 struct WebRect;
@@ -173,6 +174,14 @@ public:
     // navigation.
     BLINK_EXPORT void setFrameOwnerSandboxFlags(WebSandboxFlags);
 
+    // Updates the scrolling and margin properties in the frame's FrameOwner.
+    // This is used when this frame's parent is in another process and it
+    // dynamically updates these properties.  The flags won't take effect until
+    // the next navigation.
+    // TODO(dcheng): Currently, the update only takes effect on next frame
+    // navigation.
+    BLINK_EXPORT void setFrameOwnerProperties(const WebFrameOwnerProperties&);
+
     // Geometry -----------------------------------------------------------
 
     // NOTE: These routines do not force page layout so their results may