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

webkit/build/localized_strings/SConscript

 # 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_res'])
 
 env = env.Clone()
 env_res = env_res.Clone()
 
 env_res.Append(
     CPPPATH = [
         ".",
         #"$CHROME_SRC_DIR/chrome/Debug/obj/chrome_dll",
         "$CHROME_SRC_DIR",
         #"$CHROME_SRC_DIR/chrome/Debug/obj",
     ],
 )
 
-if env_res['PLATFORM'] == 'win32':
+if env_res.Bit('windows'):
   env_res.Append(
       RCFLAGS = [
           ["/l", "0x409"],
       ],
   )
 
 import os
 import sys
 sys.path.append(env.Dir('$CHROME_SRC_DIR/tools/grit').abspath)
 env_grd = env.Clone()
 env_grd.Tool('scons', toolpath=[env_grd.Dir('$CHROME_SRC_DIR/tools/grit/grit')])
 # This dummy target (webkit_strings) is used to tell the emitter where
 # to put the target files.
 generated = env_grd.GRIT(
     '$TARGET_ROOT/grit_derived_sources/fake_generated_target',
     '$CHROME_SRC_DIR/webkit/glue/webkit_strings.grd')
 
-if env_res['PLATFORM'] == 'win32':
+if env_res.Bit('windows'):
   for g in [g for g in generated if str(g).endswith('.rc')]:
     env_res.RES(g)