Convert from using env['PLATFORM'] directly to using the more flexible...

chrome/test/interactive_ui/interactive_ui_tests.scons

 # Copyright (c) 2006-2008 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.
 
 Import('env')
 
 env = env.Clone()
 
 env.SConscript([
     '$BASE_DIR/gfx/using_base_gfx.scons',
@@ skipping 44 matching lines @@
         'test_chrome_plugin',
         'util',
         'views',
         'v8_snapshot',
         'V8Bindings',
         'WebCore',
         'WTF',
     ],
 )
 
-if env['PLATFORM'] == 'win32':
+if env.Bit('windows'):
   env.Prepend(
       LINKFLAGS = [
           '/INCREMENTAL',
           '/DEBUG',
 
           '/DELAYLOAD:"dwmapi.dll"',
           '/DELAYLOAD:"uxtheme.dll"',
 
           '/MACHINE:X86',
           '/FIXED:No',
@@ skipping 22 matching lines @@
     '$CHROME_DIR/test/testing_profile$OBJSUFFIX',
     '$CHROME_DIR/test/ui/npapi_test_helper$OBJSUFFIX',
     '$CHROME_DIR/test/ui/run_all_unittests$OBJSUFFIX',
     '$CHROME_DIR/test/ui/ui_test$OBJSUFFIX',
     '$CHROME_DIR/test/ui/ui_test_suite$OBJSUFFIX',
 
     'view_event_test_base.cc',
 ]
 
 env.ChromeTestProgram('interactive_ui_tests', input_files)