Don't directly link to the private Xcode framework, instead find it at runtime

testing/iossim/iossim.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.
 
 {
   'variables': {
     'iphone_sim_path': '$(DEVELOPER_DIR)/Platforms/iPhoneSimulator.platform/Developer/Library/PrivateFrameworks',
     'other_frameworks_path': '$(DEVELOPER_DIR)/../OtherFrameworks'
   },
   'targets': [
     {
       'target_name': 'iossim',
       'type': 'executable',
       'dependencies': [
         '<(DEPTH)/testing/iossim/third_party/class-dump/class-dump.gyp:class-dump',
       ],
       'include_dirs': [
         '<(INTERMEDIATE_DIR)/iossim',
       ],
       'sources': [
         'iossim.mm',
         '<(INTERMEDIATE_DIR)/iossim/iPhoneSimulatorRemoteClient.h',
       ],
       'libraries': [
         '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
-        '<(iphone_sim_path)/iPhoneSimulatorRemoteClient.framework',
       ],
-      'mac_framework_dirs': [
-        '<(iphone_sim_path)',
-      ],
-      'xcode_settings': {
-        'LD_RUNPATH_SEARCH_PATHS': [
-          '<(iphone_sim_path)',
-          '<(other_frameworks_path)',
-        ]
-      },
       'actions': [
         {
           'action_name': 'generate_iphone_sim_header',
           'inputs': [
             '<(iphone_sim_path)/iPhoneSimulatorRemoteClient.framework/Versions/Current/iPhoneSimulatorRemoteClient',
             '$(BUILD_DIR)/$(CONFIGURATION)/class-dump',
           ],
           'outputs': [
             '<(INTERMEDIATE_DIR)/iossim/iPhoneSimulatorRemoteClient.h'
           ],
           'action': [
             # Actions don't provide a way to redirect stdout, so a custom
             # script is invoked that will execute the first argument and write
             # the output to the file specified as the second argument.
             '<(DEPTH)/testing/iossim/redirect-stdout.sh',
             '$(BUILD_DIR)/$(CONFIGURATION)/class-dump -CiPhoneSimulator <(iphone_sim_path)/iPhoneSimulatorRemoteClient.framework',
             '<(INTERMEDIATE_DIR)/iossim/iPhoneSimulatorRemoteClient.h',
           ],
           'message': 'Generating header',
         },
       ],
     },
   ],
 }