Add a separate call to initialize the bounds for a sky <iframe> element.

sky/engine/core/html/HTMLIFrameElement.h

Index: sky/engine/core/html/HTMLIFrameElement.h
diff --git a/sky/engine/core/html/HTMLIFrameElement.h b/sky/engine/core/html/HTMLIFrameElement.h
index 577f4b1d47699a15791ab825be01850f26b38544..d5222cdc529137ae178ce8caa846c6e4b185b73d 100644
--- a/sky/engine/core/html/HTMLIFrameElement.h
+++ b/sky/engine/core/html/HTMLIFrameElement.h
@@ -9,9 +9,12 @@
 #include "core/dom/DOMURLUtils.h"
 #include "core/dom/Document.h"
 #include "core/html/HTMLElement.h"
+#include "wtf/OwnPtr.h"
 
 namespace blink {
 
+class RemoteFrame;
+
 class HTMLIFrameElement : public HTMLElement {
     DEFINE_WRAPPERTYPEINFO();
 public:
@@ -19,6 +22,8 @@ public:
 
     virtual ~HTMLIFrameElement();
 
+    RemoteFrame* contentFrame() const { return m_contentFrame.get(); }
+
 private:
     explicit HTMLIFrameElement(Document&);
 
@@ -29,6 +34,8 @@ private:
 
 private:
     void createView();
+
+    OwnPtr<RemoteFrame> m_contentFrame;
 };
 
 } // namespace blink