Virtual destructors should have virtual keyword.

chrome/browser/extensions/extension_page_actions_module.h

Index: chrome/browser/extensions/extension_page_actions_module.h
diff --git a/chrome/browser/extensions/extension_page_actions_module.h b/chrome/browser/extensions/extension_page_actions_module.h
index ee99906e99c5a8ce1a28501bcdb7edb791289a2b..658538236f8660d7818fe42e318a8a5002a96e45 100644
--- a/chrome/browser/extensions/extension_page_actions_module.h
+++ b/chrome/browser/extensions/extension_page_actions_module.h
@@ -26,70 +26,70 @@ class PageActionFunction : public SyncExtensionFunction {
 
 // Implement chrome.pageActions.enableForTab().
 class EnablePageActionFunction : public PageActionFunction {
-  ~EnablePageActionFunction() {}
+  virtual ~EnablePageActionFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageActions.enableForTab")
 };
 
 // Implement chrome.pageActions.disableForTab().
 class DisablePageActionFunction : public PageActionFunction {
-  ~DisablePageActionFunction() {}
+  virtual ~DisablePageActionFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageActions.disableForTab")
 };
 
 // Implement chrome.pageActions.show().
 class PageActionShowFunction : public PageActionFunction {
-  ~PageActionShowFunction() {}
+  virtual ~PageActionShowFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageAction.show")
 };
 
 // Implement chrome.pageActions.hide().
 class PageActionHideFunction : public PageActionFunction {
-  ~PageActionHideFunction() {}
+  virtual ~PageActionHideFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageAction.hide")
 };
 
 // Implement chrome.pageActions.setIcon().
 class PageActionSetIconFunction : public PageActionFunction {
-  ~PageActionSetIconFunction() {}
+  virtual ~PageActionSetIconFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageAction.setIcon")
 };
 
 // Implement chrome.pageActions.setTitle().
 class PageActionSetTitleFunction : public PageActionFunction {
-  ~PageActionSetTitleFunction() {}
+  virtual ~PageActionSetTitleFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageAction.setTitle")
 };
 
 // Implement chrome.pageActions.setPopup().
 class PageActionSetPopupFunction : public PageActionFunction {
-  ~PageActionSetPopupFunction() {}
+  virtual ~PageActionSetPopupFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageAction.setPopup")
 };
 
 // Implement chrome.pageActions.setBadgeBackgroundColor().
 class PageActionSetBadgeBackgroundColorFunction : public PageActionFunction {
-  ~PageActionSetBadgeBackgroundColorFunction() {}
+  virtual ~PageActionSetBadgeBackgroundColorFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageAction.setBadgeBackgroundColor")
 };
 
 // Implement chrome.pageActions.setBadgeTextColor().
 class PageActionSetBadgeTextColorFunction : public PageActionFunction {
-  ~PageActionSetBadgeTextColorFunction() {}
+  virtual ~PageActionSetBadgeTextColorFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageAction.setBadgeTextColor")
 };
 
 // Implement chrome.pageActions.setBadgeText().
 class PageActionSetBadgeTextFunction : public PageActionFunction {
-  ~PageActionSetBadgeTextFunction() {}
+  virtual ~PageActionSetBadgeTextFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("pageAction.setBadgeText")
 };