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

chrome/browser/debugger/debugger.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([
     '$BREAKPAD_DIR/using_breakpad.scons',
@@ skipping 18 matching lines @@
     'debugger_contents.cc',
     'debugger_host_impl.cpp',
     'debugger_io_socket.cc',
     'debugger_node.cc',
     'debugger_shell.cc',
     'debugger_view.cc',
     'debugger_window.cc',
     'debugger_wrapper.cc',
 ]
 
-if env['PLATFORM'] != 'win32':
+if env.Bit('linux'):
   # TODO(port): Port these.
   remove_list = [
       'debugger_contents.cc',
       'debugger_host_impl.cpp',
       'debugger_node.cc',
       'debugger_shell.cc',
       'debugger_view.cc',
       'debugger_window.cc',
   ]
   for file in remove_list:
     input_files.remove(file)
 
-if env['PLATFORM'] in ('posix', 'win32'):
+if env.Bit('mac'):
+  # TODO(port): Port these.
+  remove_list = [
+      'debugger_contents.cc',
+      'debugger_host_impl.cpp',
+      'debugger_node.cc',
+      'debugger_shell.cc',
+      'debugger_view.cc',
+      'debugger_window.cc',
+  ]
+  for file in remove_list:
+    input_files.remove(file)
+
+if not env.Bit('mac'):
   # TODO(port): Enable for Mac.
   env.ChromeStaticLibrary('debugger', input_files)