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

chrome/browser/themes/theme_syncable_service_unittest.cc

Index: chrome/browser/themes/theme_syncable_service_unittest.cc
diff --git a/chrome/browser/themes/theme_syncable_service_unittest.cc b/chrome/browser/themes/theme_syncable_service_unittest.cc
index bbeb1bcffaf0bb855adad90e5922e769f16ab6ce..df0ea150ddb54c9c5148b8e6ae360e39d73b765f 100644
--- a/chrome/browser/themes/theme_syncable_service_unittest.cc
+++ b/chrome/browser/themes/theme_syncable_service_unittest.cc
@@ -61,36 +61,32 @@ class FakeThemeService : public ThemeService {
     is_dirty_(false) {}
 
   // ThemeService implementation
-  virtual void SetTheme(const extensions::Extension* extension) override {
+  void SetTheme(const extensions::Extension* extension) override {
     is_dirty_ = true;
     theme_extension_ = extension;
     using_system_theme_ = false;
     using_default_theme_ = false;
   }
 
-  virtual void UseDefaultTheme() override {
+  void UseDefaultTheme() override {
     is_dirty_ = true;
     using_default_theme_ = true;
     using_system_theme_ = false;
     theme_extension_ = NULL;
   }
 
-  virtual void UseSystemTheme() override {
+  void UseSystemTheme() override {
     is_dirty_ = true;
     using_system_theme_ = true;
     using_default_theme_ = false;
     theme_extension_ = NULL;
   }
 
-  virtual bool UsingDefaultTheme() const override {
-    return using_default_theme_;
-  }
+  bool UsingDefaultTheme() const override { return using_default_theme_; }
 
-  virtual bool UsingSystemTheme() const override {
-    return using_system_theme_;
-  }
+  bool UsingSystemTheme() const override { return using_system_theme_; }
 
-  virtual string GetThemeID() const override {
+  string GetThemeID() const override {
     if (theme_extension_.get())
       return theme_extension_->id();
     else
@@ -236,7 +232,7 @@ class ThemeSyncableServiceTest : public testing::Test {
 };
 
 class PolicyInstalledThemeTest : public ThemeSyncableServiceTest {
-  virtual extensions::Manifest::Location GetThemeLocation() override {
+  extensions::Manifest::Location GetThemeLocation() override {
     return extensions::Manifest::EXTERNAL_POLICY_DOWNLOAD;
   }
 };