Use common display initialization logic for Unix

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 109 matching lines @@
               '-lGL',
               '-lGLU',
               '-lX11',
             ],
           },
         },{
           'sources!': [
             '../src/views/unix/SkOSWindow_Unix.cpp',
             '../src/views/unix/keysym2ucs.c',
             '../src/views/unix/skia_unix.cpp',
+            '../src/gpu/gl/glx/GrNativeDisplay_glx.h',
+            '../src/gpu/gl/glx/GrNativeDisplay_glx.cpp',
           ],
         }],
         [ 'skia_os == "win"', {
         },{
           'sources!': [
             '../src/views/win/SkOSWindow_win.cpp',
             '../src/views/win/skia_win.cpp',
           ],
         }],
         [ 'skia_gpu == 1', {
           'include_dirs': [
             '../include/gpu',
           ],
         }],
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '../include/views',
         ],
       },
       'export_dependent_settings': [
         'xml.gyp:xml',
       ],
     },
   ],
 }