Taking advantage of new configuration inheritance option....

chrome/installer/mini_installer.gyp

 {
   'variables': {
     'version_py': '../../chrome/tools/build/version.py',
     'version_path': '../../chrome/VERSION',
     'lastchange_path': '<(SHARED_INTERMEDIATE_DIR)/build/LASTCHANGE',
     # 'branding_dir' is set in the 'conditions' section at the bottom.
     'msvs_use_common_release': 0,
     'msvs_use_common_linker_extras': 0,
   },
   'conditions': [
@@ skipping 69 matching lines @@
               },
             },
             'Release': {
               'msvs_props': ['mini_installer/mini_installer_release.vsprops'],
               'msvs_settings': {
                 'VCCLCompilerTool': {
                   'BasicRuntimeChecks': '0',
                 },
               },
             },
-            'conditions': [
-              ['OS=="win"', {
-                # TODO(bradnelson): add a gyp mechanism to make this more
-                # graceful.
-                'Purify': {
-                  'msvs_props': [
-                    'mini_installer/mini_installer_release.vsprops'
-                  ],
-                  'msvs_settings': {
-                    'VCCLCompilerTool': {
-                      'BasicRuntimeChecks': '0',
-                    },
-                  },
-                },
-                'Release - no tcmalloc': {
-                  'msvs_props': [
-                    'mini_installer/mini_installer_release.vsprops'
-                  ],
-                  'msvs_settings': {
-                    'VCCLCompilerTool': {
-                      'BasicRuntimeChecks': '0',
-                    },
-                  },
-                },
-              }],
-            ],
           },
           'rules': [
             {
               'rule_name': 'mini_installer_version',
               'extension': 'version',
               'variables': {
                 'template_input_path': 'mini_installer/mini_installer_exe_version.rc.version',
               },
               'inputs': [
                 '<(template_input_path)',
@@ skipping 83 matching lines @@
       },
     }],
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: