Standardize usage of virtual/override/final specifiers.

content/child/web_url_loader_impl_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 "content/child/web_url_loader_impl.h"
 
 #include <string.h>
 
 #include "base/command_line.h"
 #include "base/macros.h"
@@ skipping 267 matching lines @@
   bool did_finish_;
   blink::WebURLError error_;
   blink::WebURLResponse response_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWebURLLoaderClient);
 };
 
 class WebURLLoaderImplTest : public testing::Test {
  public:
   explicit WebURLLoaderImplTest() : client_(&dispatcher_) {}
-  virtual ~WebURLLoaderImplTest() {}
+  ~WebURLLoaderImplTest() override {}
 
   void DoStartAsyncRequest() {
     blink::WebURLRequest request;
     request.initialize();
     request.setURL(GURL(kTestURL));
     client()->loader()->loadAsynchronously(request, client());
     ASSERT_TRUE(bridge());
     ASSERT_TRUE(peer());
   }
 
@@ skipping 399 matching lines @@
   EXPECT_EQ(kMimeType, client()->response().mimeType().latin1());
 
   DoReceiveData();
   DoCompleteRequest();
   EXPECT_FALSE(bridge()->canceled());
   EXPECT_EQ(kTestData, client()->received_data());
 }
 
 }  // namespace
 }  // namespace content