Update {virtual,override,final} to follow C++11 style in printing, round 2.

printing/printing_context_no_system_dialog.h

Index: printing/printing_context_no_system_dialog.h
diff --git a/printing/printing_context_no_system_dialog.h b/printing/printing_context_no_system_dialog.h
index 6cc8c2ac7d7ce282bd7f7678bab2ca265b68ddf2..112d74d5b0d47ecbbb93e3dfcc99d7071eac8878 100644
--- a/printing/printing_context_no_system_dialog.h
+++ b/printing/printing_context_no_system_dialog.h
@@ -18,26 +18,25 @@ namespace printing {
 class PRINTING_EXPORT PrintingContextNoSystemDialog : public PrintingContext {
  public:
   explicit PrintingContextNoSystemDialog(Delegate* delegate);
-  virtual ~PrintingContextNoSystemDialog();
+  ~PrintingContextNoSystemDialog() override;
 
   // PrintingContext implementation.
-  virtual void AskUserForSettings(
-      int max_pages,
-      bool has_selection,
-      bool is_scripted,
-      const PrintSettingsCallback& callback) override;
-  virtual Result UseDefaultSettings() override;
-  virtual gfx::Size GetPdfPaperSizeDeviceUnits() override;
-  virtual Result UpdatePrinterSettings(bool external_preview,
-                                       bool show_system_dialog) override;
-  virtual Result InitWithSettings(const PrintSettings& settings) override;
-  virtual Result NewDocument(const base::string16& document_name) override;
-  virtual Result NewPage() override;
-  virtual Result PageDone() override;
-  virtual Result DocumentDone() override;
-  virtual void Cancel() override;
-  virtual void ReleaseContext() override;
-  virtual gfx::NativeDrawingContext context() const override;
+  void AskUserForSettings(int max_pages,
+                          bool has_selection,
+                          bool is_scripted,
+                          const PrintSettingsCallback& callback) override;
+  Result UseDefaultSettings() override;
+  gfx::Size GetPdfPaperSizeDeviceUnits() override;
+  Result UpdatePrinterSettings(bool external_preview,
+                               bool show_system_dialog) override;
+  Result InitWithSettings(const PrintSettings& settings) override;
+  Result NewDocument(const base::string16& document_name) override;
+  Result NewPage() override;
+  Result PageDone() override;
+  Result DocumentDone() override;
+  void Cancel() override;
+  void ReleaseContext() override;
+  gfx::NativeDrawingContext context() const override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PrintingContextNoSystemDialog);