The ChromeFrameAutomationClient class needs to be refcounted as it implements...

chrome_frame/chrome_frame_automation.h

Index: chrome_frame/chrome_frame_automation.h
===================================================================
--- chrome_frame/chrome_frame_automation.h	(revision 31733)
+++ chrome_frame/chrome_frame_automation.h	(working copy)
@@ -233,9 +233,6 @@
   PluginUrlRequest* LookupRequest(int request_id) const;
   bool IsValidRequest(PluginUrlRequest* request) const;
   void CleanupRequests();
-  // For IE the host network stack requests are issued on a separate thread,
-  // which requires the requests to be cleaned up asynchronously.
-  void CleanupAsyncRequests();
 
   void set_use_chrome_network(bool use_chrome_network) {
     use_chrome_network_ = use_chrome_network;
@@ -263,13 +260,6 @@
 
   void SetPageFontSize(enum AutomationPageFontSize);
 
-  // Dummy reference counting functions to enable us to use the
-  // TaskMarshallerThroughWindowsMessages functionality. At this point we don't
-  // need to ensure that any tasks executed on us grab a reference to ensure
-  // that the instance remains valid.
-  void AddRef() {}
-  void Release() {}
-
  protected:
   // ChromeFrameAutomationProxy::LaunchDelegate implementation.
   virtual void LaunchComplete(ChromeFrameAutomationProxy* proxy,