Fix Bind usage in imageburner.

chrome/browser/ui/webui/chromeos/imageburner/webui_handler.h

Index: chrome/browser/ui/webui/chromeos/imageburner/webui_handler.h
===================================================================
--- chrome/browser/ui/webui/chromeos/imageburner/webui_handler.h	(revision 110982)
+++ chrome/browser/ui/webui/chromeos/imageburner/webui_handler.h	(working copy)
@@ -10,6 +10,7 @@
 
 #include "base/bind.h"
 #include "base/file_path.h"
+#include "base/memory/weak_ptr.h"
 #include "base/string16.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/cros/burn_library.h"
@@ -83,7 +84,8 @@
       public Downloader::Listener,
       public StateMachine::Observer,
       public WebUIHandlerTaskProxy::Delegate,
-      public BurnManager::Delegate {
+      public BurnManager::Delegate,
+      public base::SupportsWeakPtr<WebUIHandler> {
  public:
   explicit WebUIHandler(TabContents* contents);
   virtual ~WebUIHandler();