Add a scroll offset to PDF documents to account for the top material design toolbar.

pdf/pdfium/pdfium_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_PDFIUM_PDFIUM_ENGINE_H_
 #define PDF_PDFIUM_PDFIUM_ENGINE_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 66 matching lines @@
   virtual bool IsSelecting();
   virtual bool HasPermission(DocumentPermission permission) const;
   virtual void SelectAll();
   virtual int GetNumberOfPages();
   virtual pp::VarArray GetBookmarks();
   virtual int GetNamedDestinationPage(const std::string& destination);
   virtual int GetFirstVisiblePage();
   virtual int GetMostVisiblePage();
   virtual pp::Rect GetPageRect(int index);
   virtual pp::Rect GetPageContentsRect(int index);
+  virtual pp::Rect GetPageScreenRect(int page_index) const;
   virtual int GetVerticalScrollbarYPosition() { return position_.y(); }
   virtual void PaintThumbnail(pp::ImageData* image_data, int index);
   virtual void SetGrayscale(bool grayscale);
   virtual void OnCallback(int id);
   virtual std::string GetPageAsJSON(int index);
   virtual bool GetPrintScaling();
   virtual int GetCopiesToPrint();
   virtual int GetDuplexType();
   virtual bool GetPageSizeAndUniformity(pp::Size* size);
   virtual void AppendBlankPages(int num_pages);
@@ skipping 269 matching lines @@
   // units that PDFium rendering functions expect.
   void GetPDFiumRect(int page_index, const pp::Rect& rect, int* start_x,
                      int* start_y, int* size_x, int* size_y) const;
 
   // Returns the rendering flags to pass to PDFium.
   int GetRenderingFlags() const;
 
   // Returns the currently visible rectangle in document coordinates.
   pp::Rect GetVisibleRect() const;
 
-  // Returns a page's rect in screen coordinates, as well as its surrounding
-  // border areas and bottom separator.
-  pp::Rect GetPageScreenRect(int page_index) const;
-
   // Given a rectangle in document coordinates, returns the rectange into screen
   // coordinates (i.e. 0,0 is top left corner of plugin area).  If it's not
   // visible, an empty rectangle is returned.
   pp::Rect GetScreenRect(const pp::Rect& rect) const;
 
   // Highlights the given rectangle.
   void Highlight(void* buffer,
                  int stride,
                  const pp::Rect& rect,
                  std::vector<pp::Rect>* highlighted_rects);
@@ skipping 364 matching lines @@
 
   // 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);
 };
 
 }  // namespace chrome_pdf
 
 #endif  // PDF_PDFIUM_PDFIUM_ENGINE_H_