Update {virtual,override,final} to follow C++11 style in printing, ro…

…und 2.

The Google style guide states that only one of {virtual,override,final}
should be used for each declaration, since override implies virtual and
final implies both virtual and override.

This patch was automatically generated with a ChromeOS build using a
variation of https://codereview.chromium.org/598073004.

BUG=417463

Review URL: https://codereview.chromium.org/868883003

Cr-Commit-Position: refs/heads/master@{#312724}

printing/backend/print_backend_chromeos.cc

@@ -14,20 +14,18 @@ class PrintBackendChromeOS : public PrintBackend {
   PrintBackendChromeOS();
 
   // PrintBackend implementation.
-  virtual bool EnumeratePrinters(PrinterList* printer_list) override;
-  virtual std::string GetDefaultPrinterName() override;
-  virtual bool GetPrinterSemanticCapsAndDefaults(
+  bool EnumeratePrinters(PrinterList* printer_list) override;
+  std::string GetDefaultPrinterName() override;
+  bool GetPrinterSemanticCapsAndDefaults(
       const std::string& printer_name,
       PrinterSemanticCapsAndDefaults* printer_info) override;
-  virtual bool GetPrinterCapsAndDefaults(
-      const std::string& printer_name,
-      PrinterCapsAndDefaults* printer_info) override;
-  virtual std::string GetPrinterDriverInfo(
-      const std::string& printer_name) override;
-  virtual bool IsValidPrinter(const std::string& printer_name) override;
+  bool GetPrinterCapsAndDefaults(const std::string& printer_name,
+                                 PrinterCapsAndDefaults* printer_info) override;
+  std::string GetPrinterDriverInfo(const std::string& printer_name) override;
+  bool IsValidPrinter(const std::string& printer_name) override;
 
  protected:
-  virtual ~PrintBackendChromeOS() {}
+  ~PrintBackendChromeOS() override {}
 };
 
 PrintBackendChromeOS::PrintBackendChromeOS() {}

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);