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

chrome/browser/sync/glue/local_device_info_provider_impl.h

Index: chrome/browser/sync/glue/local_device_info_provider_impl.h
diff --git a/chrome/browser/sync/glue/local_device_info_provider_impl.h b/chrome/browser/sync/glue/local_device_info_provider_impl.h
index a4bdc9cb011c12c127e4fbffe3508b2629ada006..4c8145fffd70c5a83e6bd6a55336f93829d81b90 100644
--- a/chrome/browser/sync/glue/local_device_info_provider_impl.h
+++ b/chrome/browser/sync/glue/local_device_info_provider_impl.h
@@ -19,16 +19,15 @@ class LocalDeviceInfoProviderImpl
     : public sync_driver::LocalDeviceInfoProvider {
  public:
   LocalDeviceInfoProviderImpl();
-  virtual ~LocalDeviceInfoProviderImpl();
+  ~LocalDeviceInfoProviderImpl() override;
 
   // LocalDeviceInfoProvider implementation.
-  virtual const sync_driver::DeviceInfo* GetLocalDeviceInfo() const override;
-  virtual std::string GetLocalSyncCacheGUID() const override;
-  virtual void Initialize(
-      const std::string& cache_guid,
-      const std::string& signin_scoped_device_id) override;
-  virtual scoped_ptr<Subscription> RegisterOnInitializedCallback(
-    const base::Closure& callback) override;
+  const sync_driver::DeviceInfo* GetLocalDeviceInfo() const override;
+  std::string GetLocalSyncCacheGUID() const override;
+  void Initialize(const std::string& cache_guid,
+                  const std::string& signin_scoped_device_id) override;
+  scoped_ptr<Subscription> RegisterOnInitializedCallback(
+      const base::Closure& callback) override;
 
   // Helper to construct a user agent string (ASCII) suitable for use by
   // the syncapi for any HTTP communication. This string is used by the sync