Standardize usage of virtual/override/final in chrome/browser/extensions/

chrome/browser/extensions/api/storage/policy_value_store_unittest.cc

Index: chrome/browser/extensions/api/storage/policy_value_store_unittest.cc
diff --git a/chrome/browser/extensions/api/storage/policy_value_store_unittest.cc b/chrome/browser/extensions/api/storage/policy_value_store_unittest.cc
index 1af72dbd161fc16dda4c8905651bb8b5c1217d54..72c283a14c55e203726f5bbdb3317c852a369694 100644
--- a/chrome/browser/extensions/api/storage/policy_value_store_unittest.cc
+++ b/chrome/browser/extensions/api/storage/policy_value_store_unittest.cc
@@ -45,31 +45,28 @@ class MutablePolicyValueStore : public PolicyValueStore {
       : PolicyValueStore(kTestExtensionId,
                          make_scoped_refptr(new SettingsObserverList()),
                          scoped_ptr<ValueStore>(new LeveldbValueStore(path))) {}
-  virtual ~MutablePolicyValueStore() {}
+  ~MutablePolicyValueStore() override {}
 
-  virtual WriteResult Set(
-      WriteOptions options,
-      const std::string& key,
-      const base::Value& value) override {
+  WriteResult Set(WriteOptions options,
+                  const std::string& key,
+                  const base::Value& value) override {
     return delegate()->Set(options, key, value);
   }
 
-  virtual WriteResult Set(
-      WriteOptions options, const base::DictionaryValue& values) override {
+  WriteResult Set(WriteOptions options,
+                  const base::DictionaryValue& values) override {
     return delegate()->Set(options, values);
   }
 
-  virtual WriteResult Remove(const std::string& key) override {
+  WriteResult Remove(const std::string& key) override {
     return delegate()->Remove(key);
   }
 
-  virtual WriteResult Remove(const std::vector<std::string>& keys) override {
+  WriteResult Remove(const std::vector<std::string>& keys) override {
     return delegate()->Remove(keys);
   }
 
-  virtual WriteResult Clear() override {
-    return delegate()->Clear();
-  }
+  WriteResult Clear() override { return delegate()->Clear(); }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MutablePolicyValueStore);