Include HTMLFrameOwnerElement.h in fewer headers

Source/core/frame/Frame.h

Index: Source/core/frame/Frame.h
diff --git a/Source/core/frame/Frame.h b/Source/core/frame/Frame.h
index fcde271a927b92cae444480426825f439189f68a..3727aa32a97345c082b3aa426d3163f9fa77083c 100644
--- a/Source/core/frame/Frame.h
+++ b/Source/core/frame/Frame.h
@@ -28,7 +28,6 @@
 #ifndef Frame_h
 #define Frame_h
 
-#include "core/html/HTMLFrameOwnerElement.h"
 #include "core/page/FrameTree.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
@@ -41,12 +40,13 @@ class WebLayer;
 
 namespace WebCore {
 
-class DOMWindow;
 class ChromeClient;
+class DOMWindow;
 class FrameClient;
 class FrameDestructionObserver;
 class FrameHost;
 class FrameOwner;
+class HTMLFrameOwnerElement;
 class Page;
 class RenderPart;
 class Settings;
@@ -139,11 +139,6 @@ inline FrameOwner* Frame::owner() const
     return m_owner;
 }
 
-inline HTMLFrameOwnerElement* Frame::deprecatedLocalOwner() const
-{
-    return m_owner && m_owner->isLocal() ? toHTMLFrameOwnerElement(m_owner) : 0;
-}
-
 inline FrameTree& Frame::tree() const
 {
     return m_treeNode;