Delete ChromeOS code

gyp/SampleApp.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.
 #
 {
   'targets': [
     {
       'target_name': 'SampleApp',
       'type': 'executable',
@@ skipping 236 matching lines @@
           ],
           'dependencies!': [
             'animator.gyp:animator',
             'experimental.gyp:experimental',
           ],
           'dependencies': [
             'android_output.gyp:android_output',
             'android_deps.gyp:Android_SampleApp',
           ],
         }],
-        [ 'skia_os == "chromeos"', {
-          'sources!': [
-            '../samplecode/SampleLighting.cpp',  #doesn't compile due to gpu dependencies
-          ],
-          'include_dirs' : [
-            '../include/gpu',
-          ],
-        }],
         [ 'skia_gpu == 1', {
           'dependencies': [
             'gputest.gyp:skgputest',
           ],
         }],
         [ 'not skia_pdf', {
           'dependencies!': [ 'pdf.gyp:pdf' ],
           'dependencies': [ 'pdf.gyp:nopdf' ],
         }],
       ],
     },
   ],
 }