Standardize usage of virtual/override/final specifiers.

components/policy/core/common/async_policy_provider_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 "components/policy/core/common/async_policy_provider.h"
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 60 matching lines @@
     bundle->CopyFrom(*loaded);
   }
   return bundle.Pass();
 }
 
 }  // namespace
 
 class AsyncPolicyProviderTest : public testing::Test {
  protected:
   AsyncPolicyProviderTest();
-  virtual ~AsyncPolicyProviderTest();
+  ~AsyncPolicyProviderTest() override;
 
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
   base::MessageLoop loop_;
   SchemaRegistry schema_registry_;
   PolicyBundle initial_bundle_;
   MockPolicyLoader* loader_;
   scoped_ptr<AsyncPolicyProvider> provider_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AsyncPolicyProviderTest);
 };
@@ skipping 123 matching lines @@
   EXPECT_CALL(observer, OnUpdatePolicy(provider_.get())).Times(0);
   provider_->Shutdown();
   loop_.RunUntilIdle();
   Mock::VerifyAndClearExpectations(&observer);
 
   provider_->RemoveObserver(&observer);
   provider_.reset();
 }
 
 }  // namespace policy