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

chrome/browser/ui/cocoa/location_bar/zoom_decoration_unittest.mm

Index: chrome/browser/ui/cocoa/location_bar/zoom_decoration_unittest.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/zoom_decoration_unittest.mm b/chrome/browser/ui/cocoa/location_bar/zoom_decoration_unittest.mm
index 9418bcc37f92eaa359b5e6f5bb7f8c2a9e25b9cd..ec3316c10b4987ebf94dc9ea1332220503bbf592 100644
--- a/chrome/browser/ui/cocoa/location_bar/zoom_decoration_unittest.mm
+++ b/chrome/browser/ui/cocoa/location_bar/zoom_decoration_unittest.mm
@@ -14,9 +14,9 @@ class MockZoomDecoration : public ZoomDecoration {
  public:
   explicit MockZoomDecoration(LocationBarViewMac* owner)
       : ZoomDecoration(owner), update_ui_count_(0) {}
-  virtual bool ShouldShowDecoration() const override { return true; }
-  virtual void ShowAndUpdateUI(ZoomController* zoom_controller,
-                               NSString* tooltip_string) override {
+  bool ShouldShowDecoration() const override { return true; }
+  void ShowAndUpdateUI(ZoomController* zoom_controller,
+                       NSString* tooltip_string) override {
     ++update_ui_count_;
     ZoomDecoration::ShowAndUpdateUI(zoom_controller, tooltip_string);
   }
@@ -31,7 +31,7 @@ class MockZoomController : public ZoomController {
  public:
   explicit MockZoomController(content::WebContents* web_contents)
       : ZoomController(web_contents) {}
-  virtual int GetZoomPercent() const override { return zoom_percent_; }
+  int GetZoomPercent() const override { return zoom_percent_; }
 
   int zoom_percent_;