TranslateInfoBarDelegate2 were leaked.

chrome/browser/translate/translate_infobar_delegate2.h

Index: chrome/browser/translate/translate_infobar_delegate2.h
diff --git a/chrome/browser/translate/translate_infobar_delegate2.h b/chrome/browser/translate/translate_infobar_delegate2.h
index bb535ad3b254936c10c159a855963776918d175e..130c3d5b383d3d315df04ed2dcc7d36e943f1e9e 100644
--- a/chrome/browser/translate/translate_infobar_delegate2.h
+++ b/chrome/browser/translate/translate_infobar_delegate2.h
@@ -49,10 +49,10 @@ class TranslateInfoBarDelegate2 : public InfoBarDelegate {
   int GetLanguageCount() const;
 
   // Returns the ISO code for the language at |index|.
-  const std::string& GetLanguageCodeAt(int index) const;
+  std::string GetLanguageCodeAt(int index) const;
 
   // Returns the displayable name for the language at |index|.
-  const string16& GetLanguageDisplayableNameAt(int index) const;
+  string16 GetLanguageDisplayableNameAt(int index) const;
 
   TabContents* tab_contents() const { return tab_contents_; }
 
@@ -62,8 +62,8 @@ class TranslateInfoBarDelegate2 : public InfoBarDelegate {
   int target_language_index() const { return target_language_index_; }
 
   // Convenience methods.
-  const std::string& GetOriginalLanguageCode() const;
-  const std::string& GetTargetLanguageCode() const;
+  std::string GetOriginalLanguageCode() const;
+  std::string GetTargetLanguageCode() const;
 
   // Called by the InfoBar to notify that the original/target language has
   // changed and is now the language at |language_index|.
@@ -89,7 +89,8 @@ class TranslateInfoBarDelegate2 : public InfoBarDelegate {
 
   // InfoBarDelegate implementation:
   virtual InfoBar* CreateInfoBar();
-  void InfoBarDismissed();
+  virtual void InfoBarDismissed();
+  virtual void InfoBarClosed();
   virtual SkBitmap* GetIcon() const;
   virtual InfoBarDelegate::Type GetInfoBarType();
   virtual TranslateInfoBarDelegate2* AsTranslateInfoBarDelegate2() {