Revert of Revert of Generalize printer color model handling, get rid of CUPS specific case. Enable supported paper szes…

printing/backend/print_backend_win.cc

 // 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.
 
 #include "printing/backend/print_backend.h"
 
 #include <objidl.h>
 #include <winspool.h>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 249 matching lines @@
   } else {
     LOG(WARNING) << "Fallback to color/simplex mode.";
     caps.color_default = caps.color_changeable;
     caps.duplex_default = SIMPLEX;
   }
 
   // Get printer capabilities. For more info see here:
   // http://msdn.microsoft.com/en-us/library/windows/desktop/dd183552(v=vs.85).aspx
   caps.color_changeable =
       (DeviceCapabilities(name, port, DC_COLORDEVICE, NULL, NULL) == 1);
+  caps.color_model = printing::COLOR;
+  caps.bw_model = printing::GRAY;
 
   caps.duplex_capable =
       (DeviceCapabilities(name, port, DC_DUPLEX, NULL, NULL) == 1);
 
   caps.collate_capable =
       (DeviceCapabilities(name, port, DC_COLLATE, NULL, NULL) == 1);
 
   caps.copies_capable =
       (DeviceCapabilities(name, port, DC_COPIES, NULL, NULL) > 1);
 
@@ skipping 81 matching lines @@
   ScopedPrinterHandle printer_handle;
   return printer_handle.OpenPrinter(base::UTF8ToWide(printer_name).c_str());
 }
 
 scoped_refptr<PrintBackend> PrintBackend::CreateInstance(
     const base::DictionaryValue* print_backend_settings) {
   return new PrintBackendWin;
 }
 
 }  // namespace printing