Call standard libjpeg/libjpeg-turbo APIs from SkJpegCodec

gyp/codec.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.
 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # GYP file for codec project.
@@ skipping 63 matching lines @@
           }, {  # !skia_android_framework
             'dependencies': [
               # TODO(msarett): Add libjpeg-turbo to Android so this can be a global
               # dependency.
               'libjpeg-turbo.gyp:libjpeg-turbo',
               'libpng.gyp:libpng_static',
             ],
             'export_dependent_settings': [
               'libjpeg-turbo.gyp:libjpeg-turbo',
             ],
-            'cflags': [
-              '-DTURBO_HAS_SKIP',
+            'defines': [
+              'TURBO_HAS_SKIP',
             ],
           }
         ]
       ]
     },
   ],
 }