Virtual destructors should have virtual keyword.

chrome/browser/extensions/extension_management_api.h

Index: chrome/browser/extensions/extension_management_api.h
diff --git a/chrome/browser/extensions/extension_management_api.h b/chrome/browser/extensions/extension_management_api.h
index f7a75e599351c368f80c9ef9cd415d6b66773980..04b2c8cad3115639f750d48d861eec1de059fd30 100644
--- a/chrome/browser/extensions/extension_management_api.h
+++ b/chrome/browser/extensions/extension_management_api.h
@@ -19,31 +19,31 @@ class ExtensionManagementFunction : public SyncExtensionFunction {
 };
 
 class GetAllExtensionsFunction : public ExtensionManagementFunction {
-  ~GetAllExtensionsFunction() {}
+  virtual ~GetAllExtensionsFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("management.getAll");
 };
 
 class GetExtensionByIdFunction : public ExtensionManagementFunction {
-  ~GetExtensionByIdFunction() {}
+  virtual ~GetExtensionByIdFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("management.get");
 };
 
 class LaunchAppFunction : public ExtensionManagementFunction {
-  ~LaunchAppFunction() {}
+  virtual ~LaunchAppFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("management.launchApp");
 };
 
 class SetEnabledFunction : public ExtensionManagementFunction {
-  ~SetEnabledFunction() {}
+  virtual ~SetEnabledFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("management.setEnabled");
 };
 
 class UninstallFunction : public ExtensionManagementFunction {
-  ~UninstallFunction() {}
+  virtual ~UninstallFunction() {}
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("management.uninstall");
 };