Standardize usage of virtual/override/final in net/

net/base/sdch_dictionary_fetcher_unittest.cc

Index: net/base/sdch_dictionary_fetcher_unittest.cc
diff --git a/net/base/sdch_dictionary_fetcher_unittest.cc b/net/base/sdch_dictionary_fetcher_unittest.cc
index a8b3040d7cdd792927c65f4b17928e199ad0c947..af666813711e827267e172052f35919b4e207d8b 100644
--- a/net/base/sdch_dictionary_fetcher_unittest.cc
+++ b/net/base/sdch_dictionary_fetcher_unittest.cc
@@ -58,11 +58,11 @@ class URLRequestSpecifiedResponseJob : public URLRequestSimpleJob {
   static int jobs_requested() { return jobs_requested_; }
 
  private:
-  virtual ~URLRequestSpecifiedResponseJob() {};
-  virtual int GetData(std::string* mime_type,
-                      std::string* charset,
-                      std::string* data,
-                      const CompletionCallback& callback) const override {
+  ~URLRequestSpecifiedResponseJob() override{};
+  int GetData(std::string* mime_type,
+              std::string* charset,
+              std::string* data,
+              const CompletionCallback& callback) const override {
     GURL url(request_->url());
     *data = ExpectedResponseForURL(url);
     return OK;
@@ -86,8 +86,8 @@ class SdchTestDelegate : public SdchFetcher::Delegate {
     GURL dictionary_url;
   };
 
-  virtual void AddSdchDictionary(const std::string& dictionary_text,
-                                 const GURL& dictionary_url) override {
+  void AddSdchDictionary(const std::string& dictionary_text,
+                         const GURL& dictionary_url) override {
     dictionary_additions.push_back(
         DictionaryAdditions(dictionary_text, dictionary_url));
   }