Fix print preview clipping issues due to scaling.

printing/pdf_metafile_cg_mac.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_CG_MAC_H_
 #define PRINTING_PDF_METAFILE_CG_MAC_H_
 
 #include <ApplicationServices/ApplicationServices.h>
 #include <CoreFoundation/CoreFoundation.h>
 
@@ skipping 17 matching lines @@
  public:
   PdfMetafileCg();
   virtual ~PdfMetafileCg();
 
   // Metafile methods.
   virtual bool Init();
   virtual bool InitFromData(const void* src_buffer, uint32 src_buffer_size);
 
   // Not implemented on mac.
   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;
 
   // For testing purposes only.
   virtual bool SaveTo(const FilePath& file_path) const;
 
@@ skipping 27 matching lines @@
 
   // Whether or not a page is currently open.
   bool page_is_open_;
 
   DISALLOW_COPY_AND_ASSIGN(PdfMetafileCg);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PDF_METAFILE_CG_MAC_H_