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

chrome/browser/extensions/api/image_writer_private/operation_manager_unittest.cc

Index: chrome/browser/extensions/api/image_writer_private/operation_manager_unittest.cc
diff --git a/chrome/browser/extensions/api/image_writer_private/operation_manager_unittest.cc b/chrome/browser/extensions/api/image_writer_private/operation_manager_unittest.cc
index 243048f146a0ef566fc43097791f56372bb1f6c2..dbb0aa5c2a4638be148c008eb594728ea5cf94a8 100644
--- a/chrome/browser/extensions/api/image_writer_private/operation_manager_unittest.cc
+++ b/chrome/browser/extensions/api/image_writer_private/operation_manager_unittest.cc
@@ -27,9 +27,8 @@ class FakeEventRouter : public extensions::EventRouter {
  public:
   explicit FakeEventRouter(Profile* profile) : EventRouter(profile, NULL) {}
 
-  virtual void DispatchEventToExtension(
-      const std::string& extension_id,
-      scoped_ptr<extensions::Event> event) override {
+  void DispatchEventToExtension(const std::string& extension_id,
+                                scoped_ptr<extensions::Event> event) override {
     // Do nothing with the event as no tests currently care.
   }
 };
@@ -42,9 +41,7 @@ class FakeExtensionSystem : public extensions::TestExtensionSystem {
     fake_event_router_.reset(new FakeEventRouter(profile));
   }
 
-  virtual EventRouter* event_router() override {
-    return fake_event_router_.get();
-  }
+  EventRouter* event_router() override { return fake_event_router_.get(); }
 
  private:
   scoped_ptr<FakeEventRouter> fake_event_router_;