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

chrome/browser/extensions/api/file_system/file_system_api.h

Index: chrome/browser/extensions/api/file_system/file_system_api.h
diff --git a/chrome/browser/extensions/api/file_system/file_system_api.h b/chrome/browser/extensions/api/file_system/file_system_api.h
index 62bfa52753e6e71037f80f03764b3ff64fac3e1f..1b7827732b0d70df2538c9aa345fe7ec5cfcea03 100644
--- a/chrome/browser/extensions/api/file_system/file_system_api.h
+++ b/chrome/browser/extensions/api/file_system/file_system_api.h
@@ -40,15 +40,15 @@ class FileSystemGetDisplayPathFunction : public ChromeSyncExtensionFunction {
                              FILESYSTEM_GETDISPLAYPATH)
 
  protected:
-  virtual ~FileSystemGetDisplayPathFunction() {}
-  virtual bool RunSync() override;
+  ~FileSystemGetDisplayPathFunction() override {}
+  bool RunSync() override;
 };
 
 class FileSystemEntryFunction : public ChromeAsyncExtensionFunction {
  protected:
   FileSystemEntryFunction();
 
-  virtual ~FileSystemEntryFunction() {}
+  ~FileSystemEntryFunction() override {}
 
   // This is called when writable file entries are being returned. The function
   // will ensure the files exist, creating them if necessary, and also check
@@ -88,8 +88,8 @@ class FileSystemGetWritableEntryFunction : public FileSystemEntryFunction {
                              FILESYSTEM_GETWRITABLEENTRY)
 
  protected:
-  virtual ~FileSystemGetWritableEntryFunction() {}
-  virtual bool RunAsync() override;
+  ~FileSystemGetWritableEntryFunction() override {}
+  bool RunAsync() override;
 
  private:
   void CheckPermissionAndSendResponse();
@@ -105,8 +105,8 @@ class FileSystemIsWritableEntryFunction : public ChromeSyncExtensionFunction {
                              FILESYSTEM_ISWRITABLEENTRY)
 
  protected:
-  virtual ~FileSystemIsWritableEntryFunction() {}
-  virtual bool RunSync() override;
+  ~FileSystemIsWritableEntryFunction() override {}
+  bool RunSync() override;
 };
 
 class FileSystemChooseEntryFunction : public FileSystemEntryFunction {
@@ -145,8 +145,8 @@ class FileSystemChooseEntryFunction : public FileSystemEntryFunction {
  protected:
   class FilePicker;
 
-  virtual ~FileSystemChooseEntryFunction() {}
-  virtual bool RunAsync() override;
+  ~FileSystemChooseEntryFunction() override {}
+  bool RunAsync() override;
   void ShowPicker(const ui::SelectFileDialog::FileTypeInfo& file_type_info,
                   ui::SelectFileDialog::Type picker_type);
 
@@ -177,8 +177,8 @@ class FileSystemRetainEntryFunction : public ChromeAsyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION("fileSystem.retainEntry", FILESYSTEM_RETAINENTRY)
 
  protected:
-  virtual ~FileSystemRetainEntryFunction() {}
-  virtual bool RunAsync() override;
+  ~FileSystemRetainEntryFunction() override {}
+  bool RunAsync() override;
 
  private:
   // Retains the file entry referenced by |entry_id| in apps::SavedFilesService.
@@ -195,8 +195,8 @@ class FileSystemIsRestorableFunction : public ChromeSyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION("fileSystem.isRestorable", FILESYSTEM_ISRESTORABLE)
 
  protected:
-  virtual ~FileSystemIsRestorableFunction() {}
-  virtual bool RunSync() override;
+  ~FileSystemIsRestorableFunction() override {}
+  bool RunSync() override;
 };
 
 class FileSystemRestoreEntryFunction : public FileSystemEntryFunction {
@@ -204,8 +204,8 @@ class FileSystemRestoreEntryFunction : public FileSystemEntryFunction {
   DECLARE_EXTENSION_FUNCTION("fileSystem.restoreEntry", FILESYSTEM_RESTOREENTRY)
 
  protected:
-  virtual ~FileSystemRestoreEntryFunction() {}
-  virtual bool RunAsync() override;
+  ~FileSystemRestoreEntryFunction() override {}
+  bool RunAsync() override;
 };
 
 class FileSystemObserveDirectoryFunction : public ChromeSyncExtensionFunction {
@@ -214,8 +214,8 @@ class FileSystemObserveDirectoryFunction : public ChromeSyncExtensionFunction {
                              FILESYSTEM_OBSERVEDIRECTORY)
 
  protected:
-  virtual ~FileSystemObserveDirectoryFunction() {}
-  virtual bool RunSync() override;
+  ~FileSystemObserveDirectoryFunction() override {}
+  bool RunSync() override;
 };
 
 class FileSystemUnobserveEntryFunction : public ChromeSyncExtensionFunction {
@@ -224,8 +224,8 @@ class FileSystemUnobserveEntryFunction : public ChromeSyncExtensionFunction {
                              FILESYSTEM_UNOBSERVEENTRY)
 
  protected:
-  virtual ~FileSystemUnobserveEntryFunction() {}
-  virtual bool RunSync() override;
+  ~FileSystemUnobserveEntryFunction() override {}
+  bool RunSync() override;
 };
 
 class FileSystemGetObservedEntriesFunction
@@ -235,8 +235,8 @@ class FileSystemGetObservedEntriesFunction
                              FILESYSTEM_GETOBSERVEDENTRIES);
 
  protected:
-  virtual ~FileSystemGetObservedEntriesFunction() {}
-  virtual bool RunSync() override;
+  ~FileSystemGetObservedEntriesFunction() override {}
+  bool RunSync() override;
 };
 
 }  // namespace extensions