Support target/host architecture with ninja iOS builds

testing/gtest.gyp

 # Copyright (c) 2012 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.
 
 {
   'targets': [
     {
       'target_name': 'gtest',
       'type': 'static_library',
       'sources': [
@@ skipping 47 matching lines @@
             'platform_test_mac.mm'
           ],
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
             ],
           },
         }],
         ['OS == "ios"', {
           'dependencies' : [
-            '<(DEPTH)/testing/iossim/iossim.gyp:iossim',
+            '<(DEPTH)/testing/iossim/iossim.gyp:iossim#host',
           ],
           'direct_dependent_settings': {
             'target_conditions': [
               # Turn all tests into bundles on iOS because that's the only
               # type of executable supported for iOS.
               ['_type=="executable"', {
                 'variables': {
                   # Use a variable so the path gets fixed up so it is always
                   # correct when INFOPLIST_FILE finally gets set.
                   'ios_unittest_info_plist_path':
@@ skipping 124 matching lines @@
     {
       'target_name': 'gtest_prod',
       'toolsets': ['host', 'target'],
       'type': 'none',
       'sources': [
         'gtest/include/gtest/gtest_prod.h',
       ],
     },
   ],
 }