replace OVERRIDE and FINAL with override and final in sync/

sync/engine/directory_commit_contribution_unittest.cc

Index: sync/engine/directory_commit_contribution_unittest.cc
diff --git a/sync/engine/directory_commit_contribution_unittest.cc b/sync/engine/directory_commit_contribution_unittest.cc
index 7c12f50e38238262ec1f49425ea46deb31022a9a..be04c73c42068815b8188582a76cf38b8f6eaab7 100644
--- a/sync/engine/directory_commit_contribution_unittest.cc
+++ b/sync/engine/directory_commit_contribution_unittest.cc
@@ -20,7 +20,7 @@ namespace syncer {
 
 class DirectoryCommitContributionTest : public ::testing::Test {
  public:
-  virtual void SetUp() OVERRIDE {
+  virtual void SetUp() override {
     dir_maker_.SetUp();
 
     syncable::WriteTransaction trans(FROM_HERE, syncable::UNITTEST, dir());
@@ -30,7 +30,7 @@ class DirectoryCommitContributionTest : public ::testing::Test {
     CreateTypeRoot(&trans, dir(), BOOKMARKS);
   }
 
-  virtual void TearDown() OVERRIDE {
+  virtual void TearDown() override {
     dir_maker_.TearDown();
   }