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diff --git a/printing/pdf_metafile_mac.h b/printing/pdf_metafile_mac.h
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+++ b/printing/pdf_metafile_mac.h
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+// Copyright (c) 2009 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_MAC_H_
+#define PRINTING_PDF_METAFILE_MAC_H_
+
+#import <ApplicationServices/ApplicationServices.h>
+#import <CoreFoundation/CoreFoundation.h>
+
+#include "base/basictypes.h"
+#include "base/scoped_cftyperef.h"
+
+namespace printing {
+
+// This class creates a graphics context that renders into a PDF data stream.
+class PdfMetafile {
+ public:
+  // To create PDF data, callers should also call Init() to set up the
+  // rendering context.
+  // To create a metafile from existing Data, callers should also call
+  // Init(const void*, size_t).
+  PdfMetafile();
+
+  ~PdfMetafile() {}
+
+  // Initializes a new metafile, and returns a drawing context for rendering
+  // into the PDF. Returns NULL on failure.
+  // Note: The returned context *must not be retained* past Close(). If it is,
+  // the data returned from GetData will not be valid PDF data.
+  CGContextRef Init();
+
+  // Initializes a copy of metafile from PDF data. Returns true on success.
+  bool Init(const void* src_buffer, size_t src_buffer_size);
+  // Alias for Init, for compatibility with Emf-based code.
+  bool CreateFromData(const void* src_buffer, size_t src_buffer_size);
+
+  // Prepares a new pdf page with the given width and height and a scale
+  // factor to use for the drawing.
+  void StartPage(double width, double height, double scale_factor);
+
+  // Closes the current page.
+  void FinishPage();
+
+  // Closes the PDF file; no further rendering is allowed.
+  void Close();
+
+  // Returns the size of the underlying PDF data. Only valid after Close() has
+  // been called.
+  unsigned int GetDataSize() const;
+
+  // Copies the first |dst_buffer_size| bytes of the PDF data into |dst_buffer|.
+  // Only valid after Close() has been called.
+  // Returns true if the copy succeeds.
+  bool GetData(void* dst_buffer, size_t dst_buffer_size) const;
+
+ private:
+  // Context for rendering to the pdf.
+  scoped_cftyperef<CGContextRef> context_;
+
+  // PDF backing store.
+  scoped_cftyperef<CFMutableDataRef> pdf_data_;
+
+  // Whether or not a page is currently open.
+  bool page_is_open_;
+
+  DISALLOW_COPY_AND_ASSIGN(PdfMetafile);
+};
+
+}  // namespace printing
+
+#endif  // PRINTING_PDF_METAFILE_MAC_H_