Clean up cloud printing aura stub code.

printing/printing.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 17 matching lines @@
       ],
       'sources': [
         'backend/print_backend.cc',
         'backend/print_backend.h',
         'backend/print_backend_consts.cc',
         'backend/print_backend_consts.h',
         'backend/print_backend_dummy.cc',
         'emf_win.cc',
         'emf_win.h',
         'image.cc',
-        'image_aura.cc',
-        'image_cairo.cc',
+        'image_linux.cc',
         'image_mac.cc',
         'image_win.cc',
         'image.h',
         'metafile.h',
         'metafile_impl.h',
         'metafile_skia_wrapper.h',
         'metafile_skia_wrapper.cc',
         'page_number.cc',
         'page_number.h',
         'page_range.cc',
         'page_range.h',
         'page_setup.cc',
         'page_setup.h',
         'page_size_margins.cc',
         'page_size_margins.h',
         'pdf_metafile_cg_mac.cc',
         'pdf_metafile_cg_mac.h',
         'pdf_metafile_skia.h',
         'pdf_metafile_skia.cc',
-        'printed_document_aura.cc',
-        'printed_document_cairo.cc',
+        'printed_document_gtk.cc',
         'printed_document.cc',
         'printed_document.h',
         'printed_document_mac.cc',
         'printed_document_win.cc',
         'printed_page.cc',
         'printed_page.h',
         'printed_pages_source.h',
         'printing_context.cc',
         'printing_context.h',
         'print_dialog_gtk_interface.h',
@@ skipping 49 matching lines @@
           ],
         }],
         ['OS=="mac" and use_aura==0',{
           'sources': [
             'printing_context_mac.mm',
             'printing_context_mac.h',
           ],
         }],
         ['OS=="win"', {
           'conditions': [
-            ['use_aura==1', {
-              'sources!': [
-                'image_aura.cc',
-                'printed_document_aura.cc',
-              ],
-            }, {  #else: use_aura==0
+            ['use_aura==0', {
               'sources': [
                 'printing_context_win.cc',
                 'printing_context_win.h',
               ],
           }]],
           'defines': [
             # PRINT_BACKEND_AVAILABLE disables the default dummy implementation
             # of the print backend and enables a custom implementation instead.
             'PRINT_BACKEND_AVAILABLE',
           ],
@@ skipping 120 matching lines @@
                   '<!@(python cups_config_helper.py --cflags)',
                 ],
               }],
             ],
           },
         }],
       ],
     },
   ],
 }