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

chrome/browser/devtools/device/self_device_provider.h

Index: chrome/browser/devtools/device/self_device_provider.h
diff --git a/chrome/browser/devtools/device/self_device_provider.h b/chrome/browser/devtools/device/self_device_provider.h
index bab490d2db8effdc251c4968b9ddae06052129e8..365eebbb8ee12bda7624433475483913b3bbec74 100644
--- a/chrome/browser/devtools/device/self_device_provider.h
+++ b/chrome/browser/devtools/device/self_device_provider.h
@@ -12,17 +12,17 @@ class SelfAsDeviceProvider : public AndroidDeviceManager::DeviceProvider {
  public:
   explicit SelfAsDeviceProvider(int port);
 
-  virtual void QueryDevices(const SerialsCallback& callback) override;
+  void QueryDevices(const SerialsCallback& callback) override;
 
-  virtual void QueryDeviceInfo(const std::string& serial,
-                               const DeviceInfoCallback& callback) override;
+  void QueryDeviceInfo(const std::string& serial,
+                       const DeviceInfoCallback& callback) override;
 
-  virtual void OpenSocket(const std::string& serial,
-                          const std::string& socket_name,
-                          const SocketCallback& callback) override;
+  void OpenSocket(const std::string& serial,
+                  const std::string& socket_name,
+                  const SocketCallback& callback) override;
 
  private:
-  virtual ~SelfAsDeviceProvider(){}
+  ~SelfAsDeviceProvider() override {}
 
   int port_;
 };