Remove unused printing::Emf code.

printing/emf_win.h

 // 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_EMF_WIN_H_
 #define PRINTING_EMF_WIN_H_
 
 #include <stddef.h>
 #include <stdint.h>
 #include <windows.h>
@@ skipping 10 matching lines @@
 class FilePath;
 }
 
 namespace gfx {
 class Rect;
 class Size;
 }
 
 namespace printing {
 
-// http://msdn2.microsoft.com/en-us/library/ms535522.aspx
-// Windows 2000/XP: When a page in a spooled file exceeds approximately 350
-// MB, it can fail to print and not send an error message.
-const size_t kMetafileMaxSize = 350*1024*1024;
-
 // Simple wrapper class that manage an EMF data stream and its virtual HDC.
 class PRINTING_EXPORT Emf : public Metafile {
  public:
   class Record;
   class Enumerator;
   struct EnumerationContext;
 
   // Generates a virtual HDC that will record every GDI commands and compile
   // it in a EMF data stream.
   Emf();
@@ skipping 29 matching lines @@
   // Should be passed to Playback to keep the exact same size.
   gfx::Rect GetPageBounds(unsigned int page_number) const override;
 
   unsigned int GetPageCount() const override;
   HDC context() const override;
   bool Playback(HDC hdc, const RECT* rect) const override;
   bool SafePlayback(HDC hdc) const override;
 
   HENHMETAFILE emf() const { return emf_; }
 
-  // Returns true if metafile contains alpha blend.
-  bool IsAlphaBlendUsed() const;
-
-  // Returns new metafile with only bitmap created by playback of the current
-  // metafile. Returns NULL if fails.
-  std::unique_ptr<Emf> RasterizeMetafile(int raster_area_in_pixels) const;
-
-  // Returns new metafile where AlphaBlend replaced by bitmaps. Returns NULL
-  // if fails.
-  std::unique_ptr<Emf> RasterizeAlphaBlend() const;
-
  private:
   FRIEND_TEST_ALL_PREFIXES(EmfTest, DC);
   FRIEND_TEST_ALL_PREFIXES(EmfPrintingTest, PageBreak);
   FRIEND_TEST_ALL_PREFIXES(EmfTest, FileBackedEmf);
 
   // Playbacks safely one EMF record.
   static int CALLBACK SafePlaybackProc(HDC hdc,
                                        HANDLETABLE* handle_table,
                                        const ENHMETARECORD* record,
                                        int objects_count,
@@ skipping 78 matching lines @@
   std::vector<Record> items_;
 
   EnumerationContext context_;
 
   DISALLOW_COPY_AND_ASSIGN(Enumerator);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_EMF_WIN_H_