Minor cleanup to how infobars handle expiry:

chrome/browser/geolocation/geolocation_confirm_infobar_delegate.h

Index: chrome/browser/geolocation/geolocation_confirm_infobar_delegate.h
===================================================================
--- chrome/browser/geolocation/geolocation_confirm_infobar_delegate.h	(revision 174909)
+++ chrome/browser/geolocation/geolocation_confirm_infobar_delegate.h	(working copy)
@@ -32,6 +32,8 @@
   // ConfirmInfoBarDelegate:
   virtual gfx::Image* GetIcon() const OVERRIDE;
   virtual Type GetInfoBarType() const OVERRIDE;
+  virtual bool ShouldExpireInternal(
+      const content::LoadCommittedDetails& details) const OVERRIDE;
   virtual string16 GetMessageText() const OVERRIDE;
   virtual string16 GetButtonLabel(InfoBarButton button) const OVERRIDE;
   virtual bool Accept() OVERRIDE;
@@ -46,6 +48,7 @@
   GeolocationInfoBarQueueController* controller_;
   const GeolocationPermissionRequestID id_;
   GURL requesting_frame_;
+  int contents_unique_id_;
   std::string display_languages_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(GeolocationConfirmInfoBarDelegate);