Moving configuration platform to always be present, as that is required...

build/common.gypi

 # Copyright (c) 2009 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': {
     # .gyp files should set chromium_code to 1 if they build Chromium-specific
     # code, as opposed to external code.  This variable is used to control
     # such things as the set of warnings to enable, and whether warnings are
     # treated as errors.
@@ skipping 256 matching lines @@
       'Release': {
         'defines': [
           'NDEBUG',
         ],
         'xcode_settings': {
           'DEAD_CODE_STRIPPING': 'YES',  # -Wl,-dead_strip
           'GCC_OPTIMIZATION_LEVEL': '<(mac_release_optimization)',
         },
         'conditions': [
           [ 'OS=="win" and msvs_use_common_release', {
-            'configuration_platform': 'Win32',
             'msvs_props': ['release.vsprops'],
           }],
           [ 'OS=="win"', {
+            'configuration_platform': 'Win32',
             'msvs_configuration_attributes': {
               'OutputDirectory': '$(SolutionDir)$(ConfigurationName)',
               'IntermediateDirectory': '$(OutDir)\\obj\\$(ProjectName)',
               'CharacterSet': '1',
             },
             'msvs_settings': {
               'VCLinkerTool': {
                 'LinkIncremental': '1',
               },
             },
           }],
         ],
       },
       'conditions': [
         [ 'OS=="win"', {
           # TODO(bradnelson): add a gyp mechanism to make this more graceful.
           'Purify': {
+            'configuration_platform': 'Win32',
             'defines': [
               'NDEBUG',
               'PURIFY',
               'NO_TCMALLOC',
             ],
             'msvs_configuration_attributes': {
               'OutputDirectory': '$(SolutionDir)$(ConfigurationName)',
               'IntermediateDirectory': '$(OutDir)\\obj\\$(ProjectName)',
               'CharacterSet': '1',
             },
             'msvs_settings': {
               'VCCLCompilerTool': {
                 'Optimization': '0',
                 'RuntimeLibrary': '0',
                 'BufferSecurityCheck': 'false',
               },
               'VCLinkerTool': {
                 'EnableCOMDATFolding': '1',
                 'LinkIncremental': '1',
               },
             },
             'conditions': [
               [ 'msvs_use_common_release', {
-                'configuration_platform': 'Win32',
                 'msvs_props': ['release.vsprops'],
               }],
             ],
           },
           'Release - no tcmalloc': {
+            'configuration_platform': 'Win32',
             'defines': [
               'NDEBUG',
               'NO_TCMALLOC',
             ],
             'msvs_configuration_attributes': {
               'OutputDirectory': '$(SolutionDir)$(ConfigurationName)',
               'IntermediateDirectory': '$(OutDir)\\obj\\$(ProjectName)',
               'CharacterSet': '1',
             },
             'conditions': [
               [ 'msvs_use_common_release', {
-                'configuration_platform': 'Win32',
                 'msvs_props': ['release.vsprops'],
               }],
             ],
             'msvs_settings': {
               'VCLinkerTool': {
                 'LinkIncremental': '1',
               },
             },
           },
         }],
@@ skipping 421 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }