replace OVERRIDE and FINAL with override and final in base/

base/test/launcher/unit_test_launcher.cc

Index: base/test/launcher/unit_test_launcher.cc
diff --git a/base/test/launcher/unit_test_launcher.cc b/base/test/launcher/unit_test_launcher.cc
index 0cbae2fac366d232ef9f7eb75a1f85eb32cef282..d6aeef84fdf968770256e1c1631369b3514a7d1f 100644
--- a/base/test/launcher/unit_test_launcher.cc
+++ b/base/test/launcher/unit_test_launcher.cc
@@ -119,7 +119,7 @@ class UnitTestLauncherDelegate : public TestLauncherDelegate {
   };
 
   virtual bool ShouldRunTest(const testing::TestCase* test_case,
-                             const testing::TestInfo* test_info) OVERRIDE {
+                             const testing::TestInfo* test_info) override {
     DCHECK(thread_checker_.CalledOnValidThread());
 
     // There is no additional logic to disable specific tests.
@@ -127,7 +127,7 @@ class UnitTestLauncherDelegate : public TestLauncherDelegate {
   }
 
   virtual size_t RunTests(TestLauncher* test_launcher,
-                          const std::vector<std::string>& test_names) OVERRIDE {
+                          const std::vector<std::string>& test_names) override {
     DCHECK(thread_checker_.CalledOnValidThread());
 
     std::vector<std::string> batch;
@@ -147,7 +147,7 @@ class UnitTestLauncherDelegate : public TestLauncherDelegate {
 
   virtual size_t RetryTests(
       TestLauncher* test_launcher,
-      const std::vector<std::string>& test_names) OVERRIDE {
+      const std::vector<std::string>& test_names) override {
     MessageLoop::current()->PostTask(
         FROM_HERE,
         Bind(&UnitTestLauncherDelegate::RunSerially,