Default fake gamma to sRGB.

gyp/common_conditions.gypi

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # conditions used in both common.gypi and skia.gyp in chromium
 #
 {
   'defines': [
     'SK_ALLOW_STATIC_GLOBAL_INITIALIZERS=<(skia_static_initializers)',
     'SK_SUPPORT_GPU=<(skia_gpu)',
     'SK_FORCE_DISTANCE_FIELD_TEXT=<(skia_force_distance_field_text)',
-    
+
     # Indicate that all dependency libraries are present.  Clients that
     # are missing some of the required decoding libraries may choose
     # not to define these.  This will disable some decoder and encoder
     # features.
     'SK_HAS_GIF_LIBRARY',
     'SK_HAS_JPEG_LIBRARY',
     'SK_HAS_PNG_LIBRARY',
     'SK_HAS_WEBP_LIBRARY',
   ],
   'conditions' : [
@@ skipping 599 matching lines @@
           'GCC_THUMB_SUPPORT': 'NO',  # TODO(mtklein): why would we not want thumb?
         },
       },
     ],
 
     [ 'skia_os == "android"',
       {
         'defines': [
           'SK_BUILD_FOR_ANDROID',
 
-          # Android Text Tuning
+          # Android defines a fixed text gamma exponent instead of using SRGB
           'SK_GAMMA_EXPONENT=1.4',
           'SK_GAMMA_CONTRAST=0.0',
         ],
-        # Android defines a fixed gamma exponent instead of using SRGB
-        'defines!': [
-          'SK_GAMMA_SRGB',
-        ],
         'configurations': {
           'Release': {
             'cflags': ['-O2'],
             'conditions': [
               [ 'skia_clang_build', {
                 'cflags!': ['-g'],
                 'cflags': [ '-gline-tables-only' ],
               }],
             ],
           },
@@ skipping 57 matching lines @@
           'LD_RUNPATH_SEARCH_PATHS': ['@executable_path/.'],
       },
     }],
 
   ], # end 'conditions'
   # The Xcode SYMROOT must be at the root. See build/common.gypi in chromium for more details
   'xcode_settings': {
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }