Update {virtual,override} to follow C++11 style in chrome.

chrome/renderer/spellchecker/spellcheck_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 "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/chrome_paths.h"
@@ skipping 92 matching lines @@
   base::MessageLoop loop;
 };
 
 // A fake completion object for verification.
 class MockTextCheckingCompletion : public blink::WebTextCheckingCompletion {
  public:
   MockTextCheckingCompletion()
       : completion_count_(0) {
   }
 
-  virtual void didFinishCheckingText(
-      const blink::WebVector<blink::WebTextCheckingResult>& results)
-          override {
+  void didFinishCheckingText(
+      const blink::WebVector<blink::WebTextCheckingResult>& results) override {
     completion_count_++;
     last_results_ = results;
   }
 
-  virtual void didCancelCheckingText() override {
+  void didCancelCheckingText() override {
     completion_count_++;
   }
 
   size_t completion_count_;
   blink::WebVector<blink::WebTextCheckingResult> last_results_;
 };
 
 // Operates unit tests for the content::SpellCheck::SpellCheckWord() function
 // with the US English dictionary.
 // The unit tests in this function consist of:
@@ skipping 1235 matching lines @@
         strlen(kTestCases[i].misspelled),
         0,
         &misspelling_start,
         &misspelling_length,
         &suggestions));
     EXPECT_GE(suggestions.size(), static_cast<size_t>(1));
     if (suggestions.size() > 0)
       EXPECT_EQ(suggestions[0], base::ASCIIToUTF16(kTestCases[i].suggestion));
   }
 }