Update {virtual,override,final} to follow C++11 style in ui.

ui/shell_dialogs/select_file_dialog_android.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_SHELL_DIALOGS_ANDROID_SELECT_FILE_DIALOG_ANDROID_H_
 #define UI_SHELL_DIALOGS_ANDROID_SELECT_FILE_DIALOG_ANDROID_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
@@ skipping 13 matching lines @@
                       jstring display_name);
 
   void OnMultipleFilesSelected(JNIEnv* env,
                                jobject java_object,
                                jobjectArray filepaths,
                                jobjectArray display_names);
 
   void OnFileNotSelected(JNIEnv* env, jobject java_object);
 
   // From SelectFileDialog
-  virtual bool IsRunning(gfx::NativeWindow) const override;
-  virtual void ListenerDestroyed() override;
+  bool IsRunning(gfx::NativeWindow) const override;
+  void ListenerDestroyed() override;
 
   // Called when it is time to display the file picker.
   // params is expected to be a vector<string16> with accept_types first and
   // the capture value as the last element of the vector.
-  virtual void SelectFileImpl(
-      SelectFileDialog::Type type,
-      const base::string16& title,
-      const base::FilePath& default_path,
-      const SelectFileDialog::FileTypeInfo* file_types,
-      int file_type_index,
-      const std::string& default_extension,
-      gfx::NativeWindow owning_window,
-      void* params) override;
+  void SelectFileImpl(SelectFileDialog::Type type,
+                      const base::string16& title,
+                      const base::FilePath& default_path,
+                      const SelectFileDialog::FileTypeInfo* file_types,
+                      int file_type_index,
+                      const std::string& default_extension,
+                      gfx::NativeWindow owning_window,
+                      void* params) override;
 
   static bool RegisterSelectFileDialog(JNIEnv* env);
 
  protected:
-  virtual ~SelectFileDialogImpl();
+  ~SelectFileDialogImpl() override;
 
  private:
   SelectFileDialogImpl(Listener* listener,  SelectFilePolicy* policy);
 
-  virtual bool HasMultipleFileTypeChoicesImpl() override;
+  bool HasMultipleFileTypeChoicesImpl() override;
 
   base::android::ScopedJavaGlobalRef<jobject> java_object_;
 
   DISALLOW_COPY_AND_ASSIGN(SelectFileDialogImpl);
 };
 
 SelectFileDialog* CreateAndroidSelectFileDialog(
     SelectFileDialog::Listener* listener,
     SelectFilePolicy* policy);
 
 }  // namespace ui
 
 #endif  // UI_SHELL_DIALOGS_ANDROID_SELECT_FILE_DIALOG_ANDROID_H_