Bug 370185: clean up view header includes (trivial). rs=bzbarsky.

git-svn-id: svn://10.0.0.236/trunk@219987 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/docshell/base/nsDocShell.h

@@ -44,8 +44,6 @@
 #include "nsIPresShell.h"
 #include "nsIDOMNode.h"
 #include "nsIDOMNodeList.h"
-#include "nsIViewManager.h"
-#include "nsIScrollableView.h"
 #include "nsIContentViewer.h"
 #include "nsIPrefBranch.h"
 #include "nsVoidArray.h"
@@ -107,6 +105,8 @@
 #include "nsIObserver.h"
 #include "nsDocShellLoadTypes.h"
 
+class nsIScrollableView;
+
 /* load commands were moved to nsIDocShell.h */
 /* load types were moved to nsDocShellLoadTypes.h */