bring up SDL on windows

gyp/views.gyp

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 # Views is the Skia windowing toolkit.
 # It provides:
 #  * A portable means of creating native windows.
 #  * Events.
 #  * Basic widgets and controls.
 
@@ skipping 138 matching lines @@
 
              # mac sources
              '../src/views/mac/SkEventNotifier.h',
              '../src/views/mac/SkEventNotifier.mm',
              '../src/views/mac/SkTextFieldCell.h',
              '../src/views/mac/SkTextFieldCell.m',
              '../src/views/mac/SkNSView.h',
              '../src/views/mac/SkNSView.mm',
              '../src/views/mac/SkOSWindow_Mac.mm',
              '../src/views/mac/skia_mac.mm',
+
+             # win sources
+             '../src/views/win/SkOSWindow_win.cpp',
+             '../src/views/win/skia_win.cpp',
           ],
           'sources': [
             '../src/views/sdl/SkOSWindow_SDL.cpp',
           ],
           'export_dependent_settings': [
             'sdl.gyp:sdl',
           ],
           'conditions': [
             [ 'skia_os == "mac"', {
               'include_dirs': [
@@ skipping 12 matching lines @@
         'include_dirs': [
           '../include/views',
         ],
       },
       'export_dependent_settings': [
         'xml.gyp:xml',
       ],
     },
   ],
 }