Fix print preview clipping issues due to scaling.

printing/pdf_metafile_cairo_linux.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_PDF_METAFILE_CAIRO_LINUX_H_
 #define PRINTING_PDF_METAFILE_CAIRO_LINUX_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 19 matching lines @@
 
   // Metafile methods.
   virtual bool Init();
 
   //  Calling InitFromData() sets the data for this metafile and masks data
   //  induced by previous calls to Init() or InitFromData(), even if drawing
   //  continues on the surface returned by a previous call to Init().
   virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size);
 
   virtual skia::PlatformDevice* StartPageForVectorCanvas(
-      const gfx::Size& page_size, const gfx::Point& content_origin,
+      const gfx::Size& page_size, const gfx::Rect& content_area,
       const float& scale_factor);
   virtual bool StartPage(const gfx::Size& page_size,
-                         const gfx::Point& content_origin,
+                         const gfx::Rect& content_area,
                          const float& scale_factor);
   virtual bool FinishPage();
   virtual bool FinishDocument();
 
   virtual uint32 GetDataSize() const;
   virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const;
 
   virtual bool SaveTo(const FilePath& file_path) const;
 
   virtual gfx::Rect GetPageBounds(unsigned int page_number) const;
@@ skipping 24 matching lines @@
   // Points to the appropriate buffer depending on the way the object was
   // initialized (Init() vs InitFromData()).
   std::string* current_data_;
 
   DISALLOW_COPY_AND_ASSIGN(PdfMetafileCairo);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PDF_METAFILE_CAIRO_LINUX_H_