Mark methods with override in pdf/

pdf/pdf_engine.h

 // Copyright (c) 2012 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 PDF_PDF_ENGINE_H_
 #define PDF_PDF_ENGINE_H_
 
 #include <stdint.h>
 
 #include "build/build_config.h"
@@ skipping 43 matching lines @@
   enum DocumentPermission {
     PERMISSION_COPY,
     PERMISSION_COPY_ACCESSIBLE,
     PERMISSION_PRINT_LOW_QUALITY,
     PERMISSION_PRINT_HIGH_QUALITY,
   };
 
   // The interface that's provided to the rendering engine.
   class Client {
    public:
+    virtual ~Client() {}
+
     // Informs the client about the document's size in pixels.
     virtual void DocumentSizeUpdated(const pp::Size& size) = 0;
 
     // Informs the client that the given rect needs to be repainted.
     virtual void Invalidate(const pp::Rect& rect) = 0;
 
     // Informs the client to scroll the plugin area by the given offset.
     virtual void Scroll(const pp::Point& point) = 0;
 
     // Scroll the horizontal/vertical scrollbars to a given position.
@@ skipping 234 matching lines @@
     pp::Rect bounds;
     bool fit_to_bounds;
     bool stretch_to_bounds;
     bool keep_aspect_ratio;
     bool center_in_bounds;
     bool autorotate;
   };
 
   PDFEngineExports() {}
   virtual ~PDFEngineExports() {}
-  static PDFEngineExports* Create();
+  static PDFEngineExports* Get();
+
 #if defined(OS_WIN)
   // See the definition of RenderPDFPageToDC in pdf.cc for details.
   virtual bool RenderPDFPageToDC(const void* pdf_buffer,
                                  int buffer_size,
                                  int page_number,
                                  const RenderingSettings& settings,
                                  HDC dc) = 0;
 #endif  // OS_WIN
   // See the definition of RenderPDFPageToBitmap in pdf.cc for details.
   virtual bool RenderPDFPageToBitmap(const void* pdf_buffer,
                                      int pdf_buffer_size,
                                      int page_number,
                                      const RenderingSettings& settings,
                                      void* bitmap_buffer) = 0;
 
   virtual bool GetPDFDocInfo(const void* pdf_buffer,
                              int buffer_size,
                              int* page_count,
                              double* max_page_width) = 0;
 
   // See the definition of GetPDFPageSizeByIndex in pdf.cc for details.
   virtual bool GetPDFPageSizeByIndex(const void* pdf_buffer,
                                      int pdf_buffer_size, int page_number,
                                      double* width, double* height) = 0;
 };
 
 }  // namespace chrome_pdf
 
 #endif  // PDF_PDF_ENGINE_H_