Extract creation of PWG Raster converter settings out of privet_http_impl

chrome/browser/local_discovery/pwg_raster_converter.h

 // Copyright 2013 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 CHROME_BROWSER_LOCAL_DISCOVERY_PWG_RASTER_CONVERTER_H_
 #define CHROME_BROWSER_LOCAL_DISCOVERY_PWG_RASTER_CONVERTER_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted_memory.h"
 
 namespace base {
 class FilePath;
 }
 
+namespace cloud_devices {
+class CloudDeviceDescription;
+}
+
 namespace gfx {
 class Size;
 }
 
 namespace printing {
 class PdfRenderSettings;
 struct PwgRasterSettings;
 }
 
 namespace local_discovery {
 
 class PWGRasterConverter {
  public:
   // Callback for when the PDF is converted to a PWG raster.
   // |success| denotes whether the conversion succeeded.
   // |temp_file| is the path to the temp file (owned by the converter) that
   //     contains the PWG raster data.
   typedef base::Callback<void(bool /*success*/,
                               const base::FilePath& /*temp_file*/)>
           ResultCallback;
   virtual ~PWGRasterConverter() {}
 
   static scoped_ptr<PWGRasterConverter> CreateDefault();
 
+  // Generates conversion settings to be used with converter from printer
+  // capabilities and page size.
+  // TODO(vitalybuka): Extract page size from pdf document data.
+  static printing::PdfRenderSettings GetConversionSettings(
+      const cloud_devices::CloudDeviceDescription& printer_capabilities,
+      const gfx::Size& page_size);
+
+  // Generates pwg bitmap settings to be used with the converter from
+  // device capabilites and printing ticket.
+  static printing::PwgRasterSettings GetBitmapSettings(
+      const cloud_devices::CloudDeviceDescription& printer_capabilities,
+      const cloud_devices::CloudDeviceDescription& ticket);
+
   virtual void Start(base::RefCountedMemory* data,
                      const printing::PdfRenderSettings& conversion_settings,
                      const printing::PwgRasterSettings& bitmap_settings,
                      const ResultCallback& callback) = 0;
 };
 
 }  // namespace local_discovery
 
 #endif  // CHROME_BROWSER_LOCAL_DISCOVERY_PWG_RASTER_CONVERTER_H_