Revert https://codereview.chromium.org/1408263002/ for remoting_host_prefpane.

remoting/remoting_host_mac.gypi

 # 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.
 
 {
   'variables': {
     'remoting_host_installer_mac_roots': [
       'host/installer/mac/',
       '<(DEPTH)/chrome/installer/mac/',
     ],
@@ skipping 208 matching lines @@
           '$(SDKROOT)/System/Library/Frameworks/PreferencePanes.framework',
           '$(SDKROOT)/System/Library/Frameworks/Security.framework',
         ],
       },
       'xcode_settings': {
         'ARCHS': ['i386', 'x86_64'],
         'GCC_ENABLE_OBJC_GC': 'supported',
         'INFOPLIST_FILE': 'host/mac/me2me_preference_pane-Info.plist',
         'INFOPLIST_PREPROCESS': 'YES',
         'INFOPLIST_PREPROCESSOR_DEFINITIONS': 'VERSION_FULL="<(version_full)" VERSION_SHORT="<(version_short)" BUNDLE_ID="<(bundle_id)"',
+
+        'conditions': [
+          ['component=="shared_library"', {
+            # TODO(thakis): Figure out why this is needed,
+            # http://crbug.com/544531
+            'CLANG_CXX_LIBRARY': 'libstdc++',  # -stdlib=libstdc++
+          }],
+        ],
       },
       'mac_bundle_resources': [
         'host/mac/me2me_preference_pane.xib',
         'host/mac/me2me_preference_pane_confirm_pin.xib',
         'host/mac/me2me_preference_pane_disable.xib',
         'host/mac/me2me_preference_pane-Info.plist',
         'resources/chromoting128.png',
 
         # Localized strings for 'Info.plist'
         '<!@pymod_do_main(remoting_localize --locale_output '
         '"<(SHARED_INTERMEDIATE_DIR)/remoting/me2me_preference_pane-InfoPlist.strings/@{json_suffix}.lproj/InfoPlist.strings" '
         '--print_only <(remoting_locales))',
       ],
       'mac_bundle_resources!': [
         'host/mac/me2me_preference_pane-Info.plist',
       ],
       'conditions': [
         ['mac_breakpad==1', {
           'variables': {
             # A real .dSYM is needed for dump_syms to operate on.
             'mac_real_dsym': 1,
           },
         }],  # 'mac_breakpad==1'
       ],  # conditions
     },  # end of target 'remoting_host_prefpane'
   ],  # end of 'targets'
 
 }