Changing the include from "base/gfx/platform_canvas.h" to "skia/ext/platform_...

base/base.gyp

 # Copyright (c) 2009 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,
   },
   'includes': [
     '../build/common.gypi',
@@ skipping 525 matching lines @@
         'gfx/gtk_native_view_id_manager.cc',
         'gfx/gtk_native_view_id_manager.h',
         'gfx/gtk_util.cc',
         'gfx/gtk_util.h',
         'gfx/jpeg_codec.cc',
         'gfx/jpeg_codec.h',
         'gfx/native_theme.cc',
         'gfx/native_theme.h',
         'gfx/native_widget_types.h',
         'gfx/native_widget_types_gtk.cc',
-        'gfx/platform_canvas.h',
-        'gfx/platform_canvas_linux.h',
-        'gfx/platform_canvas_mac.h',
-        'gfx/platform_device_linux.h',
-        'gfx/platform_device_mac.h',
         'gfx/png_decoder.cc',
         'gfx/png_decoder.h',
         'gfx/png_encoder.cc',
         'gfx/png_encoder.h',
         'gfx/point.cc',
         'gfx/point.h',
         'gfx/rect.cc',
         'gfx/rect.h',
         'gfx/size.cc',
         'gfx/size.h',
@@ skipping 218 matching lines @@
           'msvs_settings': {
             'VCLinkerTool': {
               'SubSystem': '2',         # Set /SUBSYSTEM:WINDOWS
             },
           },
         },
       ],
     }],
   ],
 }