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

chrome/installer/mini_installer/mini_installer.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.ApplySConscript([
     '$GTEST_DIR/../using_gtest.scons',
 ])
 
 
 # TODO(port):  Don't be too fooled by the presence of all the
-# if env['PLATFORM'] == 'win32' tests in this file into thinking
+# if env.Bit('windows') tests in this file into thinking
 # this is necessarily portable.  They're just there to wall off the
 # obviously windows-specific things
 
-if env['PLATFORM'] == 'win32':
+if env.Bit('windows'):
   env_res = env.Clone()
 
   env_res.Append(
       CPPPATH = [
           "$DESTINATION_ROOT",
           ".",
           "$CHROME_SRC_DIR",
       ],
       RCFLAGS = [
           ["/l", "0x409"],
       ],
   )
 
   resources = env_res.RES('mini_installer.rc')
 
 
 env.Prepend(
     CPPPATH = [
         '$CHROME_SRC_DIR',
     ],
     LIBS = [
         'chrome',
     ],
 )
 
-if env['PLATFORM'] == 'win32':
+if env.Bit('windows'):
   env.FilterOut(
       LIBS = ['DelayImp.lib'],
       CCFLAGS = ['/RTC1'],
   )
 
   env.Prepend(
       CCFLAGS = [
           '/TP',
           '/GS-',         # because we link with /NODEFAULTLIB
       ],
@@ skipping 17 matching lines @@
       LIBS = [
           'shlwapi',
       ],
   )
 
 input_files = [
     "mini_installer.cc",
     "pe_resource.cc",
 ]
 
-if env['PLATFORM'] == 'win32':
+if env.Bit('windows'):
   input_files.extend([
       "$VISUAL_STUDIO/VC/crt/src/intel/mt_lib/memset.obj",
       "$VISUAL_STUDIO/VC/crt/src/intel/mt_lib/P4_memset.obj",
   ])
   input_files.extend(resources)
 
 env.ChromeProgram('mini_installer', input_files)
 
 
 env.AppendENVPath('PATH', r'C:\WINDOWS\system32')
 
 packed = env.Command('$DESTINATION_ROOT/packed_files.txt',
                      ['$CHROME_DIR/tools/build/win/create_installer_archive.py',
                       '$CHROME_DIR/installer/mini_installer/chrome.release'],
                      ('$PYTHON ${SOURCES[0]}'
                       ' --output_dir=${TARGET.dir}'
                       ' --input_file=${SOURCES[1]}'))
 env.Depends(packed, '$DESTINATION_ROOT/setup.exe')
 
 # mini_installer.rc depends on the generated packed_files.txt
 # TODO(sgk):  implicit dependency should be picked up automatically
 env.Depends(resources, packed)
 
 
 exe_version_rc = env.ChromeVersionRC('mini_installer_exe_version.rc',
                                      'mini_installer_exe_version.rc.version',
                                      PWD=Dir('.'))
 
-if env['PLATFORM'] == 'win32':
+if env.Bit('windows'):
   # TODO(sgk):  implicit dependency should be picked up automatically
   env_res.Depends(resources, exe_version_rc)