Refactor the PlatformContext layer to have only one class.

chrome/browser/printing/win_printing_context.cc

 // Copyright (c) 2006-2008 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.
 
 #include "chrome/browser/printing/win_printing_context.h"
 
 #include <winspool.h>
 
 #include "base/file_util.h"
 #include "base/message_loop.h"
@@ skipping 366 matching lines @@
     // abort_printing_ = true;
   }
   return true;
 }
 
 bool PrintingContext::InitializeSettings(const DEVMODE& dev_mode,
                                          const std::wstring& new_device_name,
                                          const PRINTPAGERANGE* ranges,
                                          int number_ranges,
                                          bool selection_only) {
-  skia::PlatformDeviceWin::InitializeDC(hdc_);
+  skia::PlatformDevice::InitializeDC(hdc_);
   DCHECK(GetDeviceCaps(hdc_, CLIPCAPS));
   DCHECK(GetDeviceCaps(hdc_, RASTERCAPS) & RC_STRETCHDIB);
   DCHECK(GetDeviceCaps(hdc_, RASTERCAPS) & RC_BITMAP64);
   // Some printers don't advertise these.
   // DCHECK(GetDeviceCaps(hdc_, RASTERCAPS) & RC_SCALING);
   // DCHECK(GetDeviceCaps(hdc_, SHADEBLENDCAPS) & SB_CONST_ALPHA);
   // DCHECK(GetDeviceCaps(hdc_, SHADEBLENDCAPS) & SB_PIXEL_ALPHA);
 
   // StretchDIBits() support is needed for printing.
   if (!(GetDeviceCaps(hdc_, RASTERCAPS) & RC_STRETCHDIB) ||
@@ skipping 206 matching lines @@
 
   if (dialog_options.hDevMode != NULL)
     GlobalFree(dialog_options.hDevMode);
   if (dialog_options.hDevNames != NULL)
     GlobalFree(dialog_options.hDevNames);
 
   return hdc_ ? OK : FAILED;
 }
 
 }  // namespace printing