Standardize usage of virtual/override/final specifiers.

chrome/browser/search/instant_service_unittest.cc

 // Copyright 2013 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 <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_util.h"
@@ skipping 16 matching lines @@
 #include "url/gurl.h"
 
 class MockInstantServiceObserver : public InstantServiceObserver {
  public:
   MOCK_METHOD0(DefaultSearchProviderChanged, void());
   MOCK_METHOD1(OmniboxStartMarginChanged, void(int));
 };
 
 class InstantServiceTest : public InstantUnitTestBase {
  protected:
-  virtual void SetUp() override {
+  void SetUp() override {
     InstantUnitTestBase::SetUp();
 
     instant_service_observer_.reset(new MockInstantServiceObserver());
     instant_service_->AddObserver(instant_service_observer_.get());
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     instant_service_->RemoveObserver(instant_service_observer_.get());
     InstantUnitTestBase::TearDown();
   }
 
   InstantSearchPrerenderer* GetInstantSearchPrerenderer() {
     return instant_service_->instant_search_prerenderer();
   }
 
   void UpdateOmniboxStartMargin(int start_margin) {
     instant_service_->OnOmniboxStartMarginChanged(start_margin);
   }
 
   scoped_ptr<MockInstantServiceObserver> instant_service_observer_;
 };
 
 class InstantServiceEnabledTest : public InstantServiceTest {
  protected:
-  virtual void SetUp() override {
+  void SetUp() override {
     ASSERT_TRUE(base::FieldTrialList::CreateFieldTrial(
         "EmbeddedSearch", "Group1 use_cacheable_ntp:1"));
     InstantServiceTest::SetUp();
   }
 };
 
 TEST_F(InstantServiceEnabledTest, DispatchDefaultSearchProviderChanged) {
   EXPECT_CALL(*instant_service_observer_.get(), DefaultSearchProviderChanged())
       .Times(1);
 
@@ skipping 83 matching lines @@
   NotifyGoogleBaseURLUpdate(new_base_url);
   EXPECT_NE(old_prerenderer, GetInstantSearchPrerenderer());
 }
 
 TEST_F(InstantServiceTest, OmniboxStartMarginChanged) {
   int new_start_margin = 92;
   EXPECT_CALL(*instant_service_observer_.get(),
               OmniboxStartMarginChanged(new_start_margin)).Times(1);
   UpdateOmniboxStartMargin(new_start_margin);
 }