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

chrome/browser/metrics/extensions_metrics_provider_unittest.cc

 // 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.
 
 #include "chrome/browser/metrics/extensions_metrics_provider.h"
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/testing_pref_service.h"
@@ skipping 24 matching lines @@
   explicit TestExtensionsMetricsProvider(
       metrics::MetricsStateManager* metrics_state_manager)
       : ExtensionsMetricsProvider(metrics_state_manager) {}
 
   // Makes the protected HashExtension method available to testing code.
   using ExtensionsMetricsProvider::HashExtension;
 
  protected:
   // Override the GetInstalledExtensions method to return a set of extensions
   // for tests.
-  virtual scoped_ptr<extensions::ExtensionSet> GetInstalledExtensions(
+  scoped_ptr<extensions::ExtensionSet> GetInstalledExtensions(
       Profile* profile) override {
     scoped_ptr<extensions::ExtensionSet> extensions(
         new extensions::ExtensionSet());
     scoped_refptr<const extensions::Extension> extension;
     extension = extensions::ExtensionBuilder()
                     .SetManifest(extensions::DictionaryBuilder()
                                      .Set("name", "Test extension")
                                      .Set("version", "1.0.0")
                                      .Set("manifest_version", 2))
                     .SetID("ahfgeienlihckogmohjhadlkjgocpleb")
@@ skipping 13 matching lines @@
                                      .Set("version", "1.0.0")
                                      .Set("manifest_version", 2))
                     .SetID("mdhofdjgenpkhlmddfaegdjddcecipmo")
                     .Build();
     extensions->Insert(extension);
     return extensions.Pass();
   }
 
   // Override GetClientID() to return a specific value on which test
   // expectations are based.
-  virtual uint64 GetClientID() override { return 0x3f1bfee9; }
+  uint64 GetClientID() override { return 0x3f1bfee9; }
 };
 
 }  // namespace
 
 // Checks that the hash function used to hide precise extension IDs produces
 // the expected values.
 TEST(ExtensionsMetricsProvider, HashExtension) {
   EXPECT_EQ(978,
             TestExtensionsMetricsProvider::HashExtension(
                 "ahfgeienlihckogmohjhadlkjgocpleb", 0));
@@ skipping 19 matching lines @@
           &local_state,
           base::Bind(&IsMetricsReportingEnabled),
           base::Bind(&StoreNoClientInfoBackup),
           base::Bind(&ReturnNoBackup)));
   TestExtensionsMetricsProvider extension_metrics(metrics_state_manager.get());
   extension_metrics.ProvideSystemProfileMetrics(&system_profile);
   ASSERT_EQ(2, system_profile.occupied_extension_bucket_size());
   EXPECT_EQ(10, system_profile.occupied_extension_bucket(0));
   EXPECT_EQ(1007, system_profile.occupied_extension_bucket(1));
 }