Standardize usage of virtual/override/final specifiers.

chrome/browser/profiles/profile_manager_unittest.cc

Index: chrome/browser/profiles/profile_manager_unittest.cc
diff --git a/chrome/browser/profiles/profile_manager_unittest.cc b/chrome/browser/profiles/profile_manager_unittest.cc
index e86c8833728ac858e860b004ec5d93af7435e781..671a1a91f30071a8cb08ac83beee47c084169168 100644
--- a/chrome/browser/profiles/profile_manager_unittest.cc
+++ b/chrome/browser/profiles/profile_manager_unittest.cc
@@ -104,7 +104,7 @@ class ProfileManagerTest : public testing::Test {
       : local_state_(TestingBrowserProcess::GetGlobal()) {
   }
 
-  virtual void SetUp() {
+  void SetUp() override {
     // Create a new temporary directory, and store the path
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     TestingBrowserProcess::GetGlobal()->SetProfileManager(
@@ -116,7 +116,7 @@ class ProfileManagerTest : public testing::Test {
 #endif
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     TestingBrowserProcess::GetGlobal()->SetProfileManager(NULL);
     base::RunLoop().RunUntilIdle();
   }
@@ -402,7 +402,7 @@ class UnittestGuestProfileManager : public UnittestProfileManager {
 
 class ProfileManagerGuestTest : public ProfileManagerTest  {
  protected:
-  virtual void SetUp() {
+  void SetUp() override {
     // Create a new temporary directory, and store the path
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     TestingBrowserProcess::GetGlobal()->SetProfileManager(