Hide cancel buttons on configuration dialogs.

chrome/browser/chromeos/options/language_chewing_config_view.h

Index: chrome/browser/chromeos/options/language_chewing_config_view.h
diff --git a/chrome/browser/chromeos/options/language_chewing_config_view.h b/chrome/browser/chromeos/options/language_chewing_config_view.h
index 4e600a8c48eac5f7e011e4ef0cab930c69957570..cdffac4f41db6cf7a46981066b2382c01a8baa62 100644
--- a/chrome/browser/chromeos/options/language_chewing_config_view.h
+++ b/chrome/browser/chromeos/options/language_chewing_config_view.h
@@ -48,6 +48,9 @@ class LanguageChewingConfigView : public views::ButtonListener,
   // views::DialogDelegate overrides.
   virtual bool IsModal() const { return true; }
   virtual views::View* GetContentsView() { return this; }
+  virtual int GetDialogButtons() const;
+  virtual std::wstring GetDialogButtonLabel(
+      MessageBoxFlags::DialogButton button) const;
   virtual std::wstring GetWindowTitle() const;
 
   // views::View overrides.