Make gyp target_arch setting native to chromium/config.py

scripts/slave/recipe_modules/chromium_android/config.py

 # Copyright 2013 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 slave.recipe_config import config_item_context, ConfigGroup
 from slave.recipe_config import ConfigList, Dict, List, Single, Static
 from slave.recipe_config_types import Path
 
 def BaseConfig(INTERNAL, REPO_NAME, REPO_URL, **_kwargs):
   return ConfigGroup(
     INTERNAL = Static(INTERNAL),
     REPO_NAME = Static(REPO_NAME),
     REPO_URL = Static(REPO_URL),
-    target_arch = Single(basestring, required=False, empty_val=''),
     extra_env = Dict(value_type=(basestring,int,Path)),
     run_findbugs = Single(bool, required=False, empty_val=False),
     run_lint = Single(bool, required=False, empty_val=False),
     run_checkdeps = Single(bool, required=False, empty_val=False),
     apply_svn_patch = Single(bool, required=False, empty_val=False),
     run_stack_tool_steps = Single(bool, required=False, empty_val=False),
     asan_symbolize = Single(bool, required=False, empty_val=False),
     extra_deploy_opts = List(inner_type=basestring),
     tests = List(inner_type=basestring),
     build_internal_android = Static(Path('[BUILD_INTERNAL]',
@@ skipping 33 matching lines @@
     c.run_findbugs = True
     c.run_lint = True
     c.run_checkdeps = True
 
 @config_ctx()
 def component_builder(c):
   pass
 
 @config_ctx()
 def x86_base(c):
-  c.target_arch = 'x86'
+  pass
 
 @config_ctx(includes=['x86_base'])
 def x86_builder(c):
   pass
 
 @config_ctx()
 def klp_builder(c):
   c.extra_env = {
     'ANDROID_SDK_BUILD_TOOLS_VERSION': 'android-4.4',
     'ANDROID_SDK_ROOT': Path(
@@ skipping 41 matching lines @@
   c.extra_deploy_opts = ['--await-internet']
   c.tests.append('enormous_instrumentation_tests')
 
 @config_ctx(includes=['try_base', 'instrumentation_tests'])
 def try_instrumentation_tests(c):
   pass
 
 @config_ctx(includes=['x86_base', 'try_base', 'instrumentation_tests'])
 def x86_try_instrumentation_tests(c):
   c.extra_deploy_opts.append('--non-rooted')