Removed unneeded cairo code.

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"
-#include "base/gtest_prod_util.h"
-#include "printing/metafile.h"
-
-namespace gfx {
-class Point;
-class Rect;
-class Size;
-}
-
-typedef struct _cairo_surface cairo_surface_t;
-
-namespace printing {
-
-// This class uses Cairo graphics library to generate PDF stream and stores
-// rendering results in a string buffer.
-class PRINTING_EXPORT PdfMetafileCairo : public Metafile {
- public:
-  PdfMetafileCairo();
-  virtual ~PdfMetafileCairo();
-
-  // 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 SkDevice* StartPageForVectorCanvas(
-      const gfx::Size& page_size, const gfx::Rect& content_area,
-      const float& scale_factor);
-
-  virtual bool StartPage(const gfx::Size& page_size,
-                         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;
-  virtual unsigned int GetPageCount() const;
-
-  virtual cairo_t* context() const;
-
-#if defined(OS_CHROMEOS)
-  virtual bool SaveToFD(const base::FileDescriptor& fd) const;
-#endif  // if defined(OS_CHROMEOS)
-
- private:
-  // Cleans up all resources.
-  void CleanUpAll();
-
-  // Cairo surface and context for entire PDF file.
-  cairo_surface_t* surface_;
-  cairo_t* context_;
-
-  // Buffer stores PDF contents for entire PDF file.
-  std::string cairo_data_;
-  // Buffer stores PDF contents. It can only be populated from InitFromData().
-  // Any calls to StartPage(), FinishPage(), FinishDocument() do not affect
-  // this buffer.
-  // Note: Such calls will result in DCHECK errors if Init() has not been called
-  // first.
-  std::string raw_data_;
-  // 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_