Standardize usage of virtual/override/final specifiers.

content/renderer/pepper/pepper_device_enumeration_host_helper_unittest.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 <map>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 63 matching lines @@
 class PepperDeviceEnumerationHostHelperTest : public testing::Test {
  protected:
   PepperDeviceEnumerationHostHelperTest()
       : ppapi_host_(&sink_, ppapi::PpapiPermissions()),
         resource_host_(&ppapi_host_, 12345, 67890),
         device_enumeration_(&resource_host_,
                             delegate_.AsWeakPtr(),
                             PP_DEVICETYPE_DEV_AUDIOCAPTURE,
                             GURL("http://example.com")) {}
 
-  virtual ~PepperDeviceEnumerationHostHelperTest() {}
+  ~PepperDeviceEnumerationHostHelperTest() override {}
 
   void SimulateMonitorDeviceChangeReceived(uint32_t callback_id) {
     PpapiHostMsg_DeviceEnumeration_MonitorDeviceChange msg(callback_id);
     ppapi::proxy::ResourceMessageCallParams call_params(
         resource_host_.pp_resource(), 123);
     ppapi::host::HostMessageContext context(call_params);
     int32_t result = PP_ERROR_FAILED;
     ASSERT_TRUE(
         device_enumeration_.HandleResourceMessage(msg, &context, &result));
     EXPECT_EQ(PP_OK, result);
@@ skipping 131 matching lines @@
   ppapi::host::HostMessageContext context(call_params);
   int32_t result = PP_ERROR_FAILED;
   ASSERT_TRUE(
       device_enumeration_.HandleResourceMessage(msg, &context, &result));
   EXPECT_EQ(PP_OK, result);
 
   EXPECT_EQ(0U, delegate_.GetRegisteredCallbackCount());
 }
 
 }  // namespace content