libchromiumcontent/chromiumcontent.gypi

{
  'target_defaults': {
    'defines': [
      'BUILDING_V8_SHARED',
      'COMPONENT_BUILD',
      'GURL_DLL',
      'V8_SHARED',
      'WEBKIT_DLL',
    ],
    'defines!': [
      'U_STATIC_IMPLEMENTATION',
    ],
  },
}