RefCounted types should not have public destructors, chrome/browser/extensions

chrome/browser/extensions/extension_content_settings_api.h

Index: chrome/browser/extensions/extension_content_settings_api.h
diff --git a/chrome/browser/extensions/extension_content_settings_api.h b/chrome/browser/extensions/extension_content_settings_api.h
index 5a9ecb2f55439c9bda50f7707dd6b95715498211..c8e4eb60e714c3802ac86ba3c0c4532b001c48a7 100644
--- a/chrome/browser/extensions/extension_content_settings_api.h
+++ b/chrome/browser/extensions/extension_content_settings_api.h
@@ -16,27 +16,47 @@ class PluginGroup;
 
 class ClearContentSettingsFunction : public SyncExtensionFunction {
  public:
-  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("contentSettings.clear")
+
+ protected:
+  virtual ~ClearContentSettingsFunction() {}
+
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
 };
 
 class GetContentSettingFunction : public SyncExtensionFunction {
  public:
-  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("contentSettings.get")
+
+ protected:
+  virtual ~GetContentSettingFunction() {}
+
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
 };
 
 class SetContentSettingFunction : public SyncExtensionFunction {
  public:
-  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("contentSettings.set")
+
+ protected:
+  virtual ~SetContentSettingFunction() {}
+
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
 };
 
 class GetResourceIdentifiersFunction : public AsyncExtensionFunction {
  public:
-  virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION_NAME("contentSettings.getResourceIdentifiers")
 
+ protected:
+  virtual ~GetResourceIdentifiersFunction() {}
+
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
+
  private:
   FRIEND_TEST_ALL_PREFIXES(ExtensionApiTest,
                            ContentSettingsGetResourceIdentifiers);