Minor cleanup to how infobars handle expiry:

chrome/browser/extensions/api/debugger/debugger_api.cc

Index: chrome/browser/extensions/api/debugger/debugger_api.cc
===================================================================
--- chrome/browser/extensions/api/debugger/debugger_api.cc	(revision 174909)
+++ chrome/browser/extensions/api/debugger/debugger_api.cc	(working copy)
@@ -71,10 +71,10 @@
 
  private:
   // ConfirmInfoBarDelegate:
-  virtual bool ShouldExpire(
-      const content::LoadCommittedDetails& details) const OVERRIDE;
   virtual int GetButtons() const OVERRIDE;
   virtual Type GetInfoBarType() const OVERRIDE;
+  virtual bool ShouldExpireInternal(
+      const content::LoadCommittedDetails& details) const OVERRIDE;
   virtual string16 GetMessageText() const OVERRIDE;
   virtual void InfoBarDismissed() OVERRIDE;
   virtual bool Cancel() OVERRIDE;
@@ -363,11 +363,6 @@
   client_host_ = NULL;
 }
 
-bool ExtensionDevToolsInfoBarDelegate::ShouldExpire(
-    const content::LoadCommittedDetails& details) const {
-  return false;
-}
-
 int ExtensionDevToolsInfoBarDelegate::GetButtons() const {
   return BUTTON_CANCEL;
 }
@@ -376,6 +371,11 @@
   return WARNING_TYPE;
 }
 
+bool ExtensionDevToolsInfoBarDelegate::ShouldExpireInternal(
+    const content::LoadCommittedDetails& details) const {
+  return false;
+}
+
 string16 ExtensionDevToolsInfoBarDelegate::GetMessageText() const {
   return l10n_util::GetStringFUTF16(IDS_DEV_TOOLS_INFOBAR_LABEL,
                                     UTF8ToUTF16(client_name_));