Add OVERRIDE to printing/.

printing/printing_context_gtk.h

 // Copyright (c) 2011 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 PRINTING_PRINTING_CONTEXT_GTK_H_
 #define PRINTING_PRINTING_CONTEXT_GTK_H_
 
 #include <string>
 
 #include "printing/printing_context.h"
@@ skipping 17 matching lines @@
       PrintDialogGtkInterface* (*create_dialog_func)(
           PrintingContextGtk* context));
 
   // Prints the document contained in |metafile|.
   void PrintDocument(const Metafile* metafile);
 
   // PrintingContext implementation.
   virtual void AskUserForSettings(gfx::NativeView parent_view,
                                   int max_pages,
                                   bool has_selection,
-                                  PrintSettingsCallback* callback);
-  virtual Result UseDefaultSettings();
+                                  PrintSettingsCallback* callback) OVERRIDE;
+  virtual Result UseDefaultSettings() OVERRIDE;
   virtual Result UpdatePrinterSettings(
       const base::DictionaryValue& job_settings,
-      const PageRanges& ranges);
-  virtual Result InitWithSettings(const PrintSettings& settings);
-  virtual Result NewDocument(const string16& document_name);
-  virtual Result NewPage();
-  virtual Result PageDone();
-  virtual Result DocumentDone();
-  virtual void Cancel();
-  virtual void ReleaseContext();
-  virtual gfx::NativeDrawingContext context() const;
+      const PageRanges& ranges) OVERRIDE;
+  virtual Result InitWithSettings(const PrintSettings& settings) OVERRIDE;
+  virtual Result NewDocument(const 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;
 
  private:
   string16 document_name_;
   PrintDialogGtkInterface* print_dialog_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintingContextGtk);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINTING_CONTEXT_GTK_H_