MacViews: Fix builds when use_aura XOR toolkit_views is TRUE.

ui/gfx/gfx.gyp

 # Copyright (c) 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 330 matching lines @@
           'dependencies': [
             'gfx_jni_headers',
           ],
           'link_settings': {
             'libraries': [
               '-landroid',
               '-ljnigraphics',
             ],
           },
         }],
-        ['use_aura==0', {
+        ['use_aura==0 and toolkit_views==0', {
           'sources!': [
             'nine_image_painter.cc',
             'nine_image_painter.h',
           ],
         }],
         ['OS=="android" and use_aura==0', {
           'sources!': [
             'path.cc',
           ],
         }],
@@ skipping 194 matching lines @@
             'x/x11_error_tracker.cc',
             'x/x11_error_tracker.h',
             'x/x11_types.cc',
             'x/x11_types.h',
           ],
         },
       ]
     }],
   ],
 }