libyuv: Disable signing for iOS

scripts/slave/recipe_modules/libyuv/chromium_config.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from recipe_engine.config import BadConf
 
 import DEPS
 CONFIG_CTX = DEPS['chromium'].CONFIG_CTX
 from recipe_engine.config_types import Path
 
@@ skipping 34 matching lines @@
   if c.TARGET_PLATFORM != 'ios':
     raise BadConf('Only "ios" target platform is supported (got: "%s")' %
                   c.TARGET_PLATFORM)  # pragma: no cover
   c.build_config_fs = c.BUILD_CONFIG + '-iphoneos'
 
   gyp_defs = c.gyp_env.GYP_DEFINES
   gyp_defs['OS'] = c.TARGET_PLATFORM
   if c.TARGET_BITS == 64:
     gyp_defs['target_subarch'] = 'arm64'
 
+  c.gn_args.append('ios_enable_code_signing=false')
   c.gn_args.append('target_os="%s"' % c.TARGET_PLATFORM)
   _libyuv_common(c)
   _libyuv_static_build(c)
 
 def _libyuv_common(c):
   c.compile_py.default_targets = []
 
 def _libyuv_static_build(c):
   # TODO(kjellander): Investigate moving this into chromium recipe module's
   # static_library config instead.
   if c.BUILD_CONFIG == 'Debug':
     # GN defaults to component builds for Debug, but some build configurations
     # (Android and iOS) needs it to be static.
     c.gn_args.append('is_component_build=false')