Propagate scrolling/marginwidth/marginheight property values to child frame.

third_party/WebKit/Source/web/WebFrame.cpp

Index: third_party/WebKit/Source/web/WebFrame.cpp
diff --git a/third_party/WebKit/Source/web/WebFrame.cpp b/third_party/WebKit/Source/web/WebFrame.cpp
index a1f3cd60efa89ff2014de9e3dc694cbe09fd68de..78d538b5b8dc542fa10ef4a952cbca81b3f01f27 100644
--- a/third_party/WebKit/Source/web/WebFrame.cpp
+++ b/third_party/WebKit/Source/web/WebFrame.cpp
@@ -16,6 +16,7 @@
 #include "platform/UserGestureIndicator.h"
 #include "platform/heap/Handle.h"
 #include "public/web/WebElement.h"
+#include "public/web/WebFrameOwnerProperties.h"
 #include "public/web/WebSandboxFlags.h"
 #include "web/OpenedFrameTracker.h"
 #include "web/RemoteBridgeFrameOwner.h"
@@ -146,6 +147,18 @@ void WebFrame::setFrameOwnerSandboxFlags(WebSandboxFlags flags)
     toRemoteBridgeFrameOwner(owner)->setSandboxFlags(static_cast<SandboxFlags>(flags));
 }
 
+void WebFrame::setFrameOwnerProperties(const WebFrameOwnerProperties& frameOwnerProperties)

[dcheng, 2015/10/15 06:06:53]

Unlike sandbox flags, this is only called on WebLocalFrame. So we should move
this to WebLocalFrame/WebLocalFrameImpl.

[lazyboy, 2015/10/15 16:56:38]

Done.

+{
+    // At the moment, this is only used to replicate frame owner properties
+    // for frames with a remote owner.
+    FrameOwner* owner = toCoreFrame(this)->owner();
+    ASSERT(owner);
+    toRemoteBridgeFrameOwner(owner)->setScrollingMode(frameOwnerProperties.scrollingMode);
+
+    toRemoteBridgeFrameOwner(owner)->setMarginWidth(frameOwnerProperties.marginWidth);
+    toRemoteBridgeFrameOwner(owner)->setMarginHeight(frameOwnerProperties.marginHeight);
+}
+
 WebFrame* WebFrame::opener() const
 {
     return m_opener;