Fix transitive dependency on generated header in Blink

third_party/WebKit/Source/platform/blink_platform.gyp

 #
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 128 matching lines @@
       '<(DEPTH)/third_party/libwebp/libwebp.gyp:libwebp',
       '<(DEPTH)/third_party/ots/ots.gyp:ots',
       '<(DEPTH)/third_party/qcms/qcms.gyp:qcms',
       '<(DEPTH)/ui/gfx/gfx.gyp:gfx',
       '<(DEPTH)/ui/gfx/gfx.gyp:gfx_geometry',
       '<(DEPTH)/url/url.gyp:url_lib',
       '<(DEPTH)/v8/tools/gyp/v8.gyp:v8',
       '<(libjpeg_gyp_path):libjpeg',
     ],
     'export_dependent_settings': [
+      'platform_generated.gyp:make_platform_generated',
       '<(DEPTH)/base/base.gyp:base',
       '<(DEPTH)/cc/cc.gyp:cc',
       '<(DEPTH)/gpu/gpu.gyp:gles2_c_lib',
       '<(DEPTH)/skia/skia.gyp:skia',
       '<(DEPTH)/third_party/libpng/libpng.gyp:libpng',
       '<(DEPTH)/third_party/libwebp/libwebp.gyp:libwebp',
       '<(DEPTH)/third_party/ots/ots.gyp:ots',
       '<(DEPTH)/third_party/qcms/qcms.gyp:qcms',
       '<(DEPTH)/v8/tools/gyp/v8.gyp:v8',
       '<(DEPTH)/url/url.gyp:url_lib',
@@ skipping 253 matching lines @@
           ['OS=="android"', {
             'cflags!': ['-mthumb'],
           }],
         ],
       },{  # target_arch!="arm"
         'type': 'none',
       }],
     ],
   }],
 }