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

chrome/browser/task_manager/task_manager_browsertest_util.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/task_manager/task_manager_browsertest_util.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
@@ skipping 16 matching lines @@
 
 class ResourceChangeObserver : public TaskManagerModelObserver {
  public:
   ResourceChangeObserver(const TaskManagerModel* model,
                          int required_count,
                          const base::string16& title_pattern)
       : model_(model),
         required_count_(required_count),
         title_pattern_(title_pattern) {}
 
-  virtual void OnModelChanged() override {
-    OnResourceChange();
-  }
+  void OnModelChanged() override { OnResourceChange(); }
 
-  virtual void OnItemsChanged(int start, int length) override {
-    OnResourceChange();
-  }
+  void OnItemsChanged(int start, int length) override { OnResourceChange(); }
 
-  virtual void OnItemsAdded(int start, int length) override {
-    OnResourceChange();
-  }
+  void OnItemsAdded(int start, int length) override { OnResourceChange(); }
 
-  virtual void OnItemsRemoved(int start, int length) override {
-    OnResourceChange();
-  }
+  void OnItemsRemoved(int start, int length) override { OnResourceChange(); }
 
   void RunUntilSatisfied() {
     // See if the condition is satisfied without having to run the loop. This
     // check has to be placed after the installation of the
     // TaskManagerModelObserver, because resources may change before that.
     if (IsSatisfied())
       return;
 
     timer_.Start(FROM_HERE,
                  TestTimeouts::action_timeout(),
@@ skipping 125 matching lines @@
 
 base::string16 MatchPrint(const char* title) {
   return l10n_util::GetStringFUTF16(IDS_TASK_MANAGER_PRINT_PREFIX,
                                     base::ASCIIToUTF16(title));
 }
 
 base::string16 MatchAnyPrint() { return MatchPrint("*"); }
 
 }  // namespace browsertest_util
 }  // namespace task_manager