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diff --git a/chromium/printing/pdf_metafile_cg_mac.h b/chromium/printing/pdf_metafile_cg_mac.h
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+++ b/chromium/printing/pdf_metafile_cg_mac.h
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+// 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 PRINTING_PDF_METAFILE_CG_MAC_H_
+#define PRINTING_PDF_METAFILE_CG_MAC_H_
+
+#include <ApplicationServices/ApplicationServices.h>
+#include <CoreFoundation/CoreFoundation.h>
+
+#include "base/basictypes.h"
+#include "base/gtest_prod_util.h"
+#include "base/mac/scoped_cftyperef.h"
+#include "base/threading/thread_checker.h"
+#include "printing/metafile.h"
+
+namespace base {
+class FilePath;
+}
+
+namespace gfx {
+class Rect;
+class Size;
+}
+
+namespace printing {
+
+// This class creates a graphics context that renders into a PDF data stream.
+class PRINTING_EXPORT PdfMetafileCg : public Metafile {
+ public:
+  PdfMetafileCg();
+  virtual ~PdfMetafileCg();
+
+  // Metafile methods.
+  virtual bool Init() OVERRIDE;
+  virtual bool InitFromData(const void* src_buffer,
+                            uint32 src_buffer_size) OVERRIDE;
+
+  // Not implemented on mac.
+  virtual SkDevice* StartPageForVectorCanvas(
+      const gfx::Size& page_size, const gfx::Rect& content_area,
+      const float& scale_factor) OVERRIDE;
+  virtual bool StartPage(const gfx::Size& page_size,
+                         const gfx::Rect& content_area,
+                         const float& scale_factor) OVERRIDE;
+  virtual bool FinishPage() OVERRIDE;
+  virtual bool FinishDocument() OVERRIDE;
+
+  virtual uint32 GetDataSize() const OVERRIDE;
+  virtual bool GetData(void* dst_buffer, uint32 dst_buffer_size) const OVERRIDE;
+
+  // For testing purposes only.
+  virtual bool SaveTo(const base::FilePath& file_path) const OVERRIDE;
+
+  virtual gfx::Rect GetPageBounds(unsigned int page_number) const OVERRIDE;
+  virtual unsigned int GetPageCount() const OVERRIDE;
+
+  // Note: The returned context *must not be retained* past Close(). If it is,
+  // the data returned from GetData will not be valid PDF data.
+  virtual CGContextRef context() const OVERRIDE;
+
+  virtual bool RenderPage(unsigned int page_number,
+                          gfx::NativeDrawingContext context,
+                          const CGRect rect,
+                          const MacRenderPageParams& params) const OVERRIDE;
+
+ private:
+  // Returns a CGPDFDocumentRef version of pdf_data_.
+  CGPDFDocumentRef GetPDFDocument() const;
+
+  base::ThreadChecker thread_checker_;
+
+  // Context for rendering to the pdf.
+  base::ScopedCFTypeRef<CGContextRef> context_;
+
+  // PDF backing store.
+  base::ScopedCFTypeRef<CFMutableDataRef> pdf_data_;
+
+  // Lazily-created CGPDFDocument representation of pdf_data_.
+  mutable base::ScopedCFTypeRef<CGPDFDocumentRef> pdf_doc_;
+
+  // Whether or not a page is currently open.
+  bool page_is_open_;
+
+  // Whether this instantiation of the PdfMetafileCg owns the thread_pdf_docs.
+  bool thread_pdf_docs_owned_;
+
+  DISALLOW_COPY_AND_ASSIGN(PdfMetafileCg);
+};
+
+}  // namespace printing
+
+#endif  // PRINTING_PDF_METAFILE_CG_MAC_H_