Standardize usage of virtual/override/final in ui/

ui/base/dragdrop/os_exchange_data_provider_mac.h

Index: ui/base/dragdrop/os_exchange_data_provider_mac.h
diff --git a/ui/base/dragdrop/os_exchange_data_provider_mac.h b/ui/base/dragdrop/os_exchange_data_provider_mac.h
index 911973e58fd22a45a26c938d34b4e240e2f686d0..3488c25074b4c418f015559515b28560abcf7578 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_mac.h
+++ b/ui/base/dragdrop/os_exchange_data_provider_mac.h
@@ -18,31 +18,30 @@ class UI_BASE_EXPORT OSExchangeDataProviderMac
  public:
   OSExchangeDataProviderMac();
   explicit OSExchangeDataProviderMac(NSPasteboard* pasteboard);
-  virtual ~OSExchangeDataProviderMac();
+  ~OSExchangeDataProviderMac() override;
 
   // Overridden from OSExchangeData::Provider:
-  virtual Provider* Clone() const override;
-  virtual void MarkOriginatedFromRenderer() override;
-  virtual bool DidOriginateFromRenderer() const override;
-  virtual void SetString(const base::string16& data) override;
-  virtual void SetURL(const GURL& url, const base::string16& title) override;
-  virtual void SetFilename(const base::FilePath& path) override;
-  virtual void SetFilenames(const std::vector<FileInfo>& filenames) override;
-  virtual void SetPickledData(const OSExchangeData::CustomFormat& format,
-                              const Pickle& data) override;
-  virtual bool GetString(base::string16* data) const override;
-  virtual bool GetURLAndTitle(OSExchangeData::FilenameToURLPolicy policy,
-                              GURL* url,
-                              base::string16* title) const override;
-  virtual bool GetFilename(base::FilePath* path) const override;
-  virtual bool GetFilenames(std::vector<FileInfo>* filenames) const override;
-  virtual bool GetPickledData(const OSExchangeData::CustomFormat& format,
-                              Pickle* data) const override;
-  virtual bool HasString() const override;
-  virtual bool HasURL(
-      OSExchangeData::FilenameToURLPolicy policy) const override;
-  virtual bool HasFile() const override;
-  virtual bool HasCustomFormat(
+  Provider* Clone() const override;
+  void MarkOriginatedFromRenderer() override;
+  bool DidOriginateFromRenderer() const override;
+  void SetString(const base::string16& data) override;
+  void SetURL(const GURL& url, const base::string16& title) override;
+  void SetFilename(const base::FilePath& path) override;
+  void SetFilenames(const std::vector<FileInfo>& filenames) override;
+  void SetPickledData(const OSExchangeData::CustomFormat& format,
+                      const Pickle& data) override;
+  bool GetString(base::string16* data) const override;
+  bool GetURLAndTitle(OSExchangeData::FilenameToURLPolicy policy,
+                      GURL* url,
+                      base::string16* title) const override;
+  bool GetFilename(base::FilePath* path) const override;
+  bool GetFilenames(std::vector<FileInfo>* filenames) const override;
+  bool GetPickledData(const OSExchangeData::CustomFormat& format,
+                      Pickle* data) const override;
+  bool HasString() const override;
+  bool HasURL(OSExchangeData::FilenameToURLPolicy policy) const override;
+  bool HasFile() const override;
+  bool HasCustomFormat(
       const OSExchangeData::CustomFormat& format) const override;
 
  private: