Standardize usage of virtual/override/final in chrome/browser/extensions/

chrome/browser/extensions/api/context_menus/context_menus_api.h

Index: chrome/browser/extensions/api/context_menus/context_menus_api.h
diff --git a/chrome/browser/extensions/api/context_menus/context_menus_api.h b/chrome/browser/extensions/api/context_menus/context_menus_api.h
index a832c3285c9c6cf02cccaf787d3ee473fc531eaf..8c05e683a3cdb53316e6b2a1c51cae363a4859c1 100644
--- a/chrome/browser/extensions/api/context_menus/context_menus_api.h
+++ b/chrome/browser/extensions/api/context_menus/context_menus_api.h
@@ -14,10 +14,10 @@ class ContextMenusCreateFunction : public ChromeSyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION("contextMenus.create", CONTEXTMENUS_CREATE)
 
  protected:
-  virtual ~ContextMenusCreateFunction() {}
+  ~ContextMenusCreateFunction() override {}
 
   // ExtensionFunction:
-  virtual bool RunSync() override;
+  bool RunSync() override;
 };
 
 class ContextMenusUpdateFunction : public ChromeSyncExtensionFunction {
@@ -25,10 +25,10 @@ class ContextMenusUpdateFunction : public ChromeSyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION("contextMenus.update", CONTEXTMENUS_UPDATE)
 
  protected:
-  virtual ~ContextMenusUpdateFunction() {}
+  ~ContextMenusUpdateFunction() override {}
 
   // ExtensionFunction:
-  virtual bool RunSync() override;
+  bool RunSync() override;
 };
 
 class ContextMenusRemoveFunction : public ChromeSyncExtensionFunction {
@@ -36,10 +36,10 @@ class ContextMenusRemoveFunction : public ChromeSyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION("contextMenus.remove", CONTEXTMENUS_REMOVE)
 
  protected:
-  virtual ~ContextMenusRemoveFunction() {}
+  ~ContextMenusRemoveFunction() override {}
 
   // ExtensionFunction:
-  virtual bool RunSync() override;
+  bool RunSync() override;
 };
 
 class ContextMenusRemoveAllFunction : public ChromeSyncExtensionFunction {
@@ -47,10 +47,10 @@ class ContextMenusRemoveAllFunction : public ChromeSyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION("contextMenus.removeAll", CONTEXTMENUS_REMOVEALL)
 
  protected:
-  virtual ~ContextMenusRemoveAllFunction() {}
+  ~ContextMenusRemoveAllFunction() override {}
 
   // ExtensionFunction:
-  virtual bool RunSync() override;
+  bool RunSync() override;
 };
 
 }  // namespace extensions