Standardize usage of virtual/override/final specifiers.

content/browser/fileapi/local_file_util_unittest.cc

Index: content/browser/fileapi/local_file_util_unittest.cc
diff --git a/content/browser/fileapi/local_file_util_unittest.cc b/content/browser/fileapi/local_file_util_unittest.cc
index fc61bd27e42f7bcaa2bfcdc3e357e18bf3578283..bf2f2f874a376c9c6562240938235df51f73a3bc 100644
--- a/content/browser/fileapi/local_file_util_unittest.cc
+++ b/content/browser/fileapi/local_file_util_unittest.cc
@@ -43,13 +43,13 @@ class LocalFileUtilTest : public testing::Test {
  public:
   LocalFileUtilTest() {}
 
-  virtual void SetUp() {
+  void SetUp() override {
     ASSERT_TRUE(data_dir_.CreateUniqueTempDir());
     file_system_context_ = CreateFileSystemContextForTesting(
         NULL, data_dir_.path());
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     file_system_context_ = NULL;
     base::RunLoop().RunUntilIdle();
   }