Update {virtual,override,final} to follow C++11 style chrome/browser/ui.

chrome/browser/ui/ash/accelerator_commands_browsertest.cc

Index: chrome/browser/ui/ash/accelerator_commands_browsertest.cc
diff --git a/chrome/browser/ui/ash/accelerator_commands_browsertest.cc b/chrome/browser/ui/ash/accelerator_commands_browsertest.cc
index 5d331945bdda580cbaa7e944491d07a660875da6..380d058f92a45c7105509c35bca17b174533a3bf 100644
--- a/chrome/browser/ui/ash/accelerator_commands_browsertest.cc
+++ b/chrome/browser/ui/ash/accelerator_commands_browsertest.cc
@@ -33,12 +33,9 @@ class MaximizableWidgetDelegate : public views::WidgetDelegateView {
  public:
   MaximizableWidgetDelegate() {
   }
-  virtual ~MaximizableWidgetDelegate() {
-  }
+  ~MaximizableWidgetDelegate() override {}
 
-  virtual bool CanMaximize() const override {
-    return true;
-  }
+  bool CanMaximize() const override { return true; }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MaximizableWidgetDelegate);