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

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/location_bar/zoom_decoration.h"
 #include "chrome/browser/ui/zoom/zoom_controller.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 
 namespace {
 
 class ZoomDecorationTest : public ChromeRenderViewHostTestHarness {};
 
 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);
   }
 
   int update_ui_count_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockZoomDecoration);
 };
 
 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_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockZoomController);
 };
 
 // Test that UpdateIfNecessary performs redraws only when the zoom percent
 // changes.
 TEST_F(ZoomDecorationTest, ChangeZoomPercent) {
   MockZoomDecoration decoration(NULL);
   MockZoomController controller(web_contents());
 
   controller.zoom_percent_ = 100;
   decoration.UpdateIfNecessary(&controller);
   EXPECT_EQ(1, decoration.update_ui_count_);
 
   decoration.UpdateIfNecessary(&controller);
   EXPECT_EQ(1, decoration.update_ui_count_);
 
   controller.zoom_percent_ = 80;
   decoration.UpdateIfNecessary(&controller);
   EXPECT_EQ(2, decoration.update_ui_count_);
 }
 
 }  // namespace