Support android as a target platform.

grit/node/base.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 '''Base types for nodes in a GRIT resource tree.
 '''
 
 import collections
 import os
@@ skipping 440 matching lines @@
     def pp_ifdef(symbol):
       return symbol in defs
     def pp_if(symbol):
       return defs.get(symbol, False)
     variable_map = {
         'defs' : defs,
         'os': target_platform,
         'is_linux': target_platform.startswith('linux'),
         'is_macosx': target_platform == 'darwin',
         'is_win': target_platform in ('cygwin', 'win32'),
-        'is_posix': (target_platform in ('darwin', 'linux2', 'linux3', 'sunos5')
-                     or 'bsd' in target_platform),
+        'is_android': target_platform == 'android',
+        'is_posix': (target_platform in ('darwin', 'linux2', 'linux3', 'sunos5',
+                                         'android')
+                    or 'bsd' in target_platform),
         'pp_ifdef' : pp_ifdef,
         'pp_if' : pp_if,
     }
     if extra_variables:
       variable_map.update(extra_variables)
     eval_result = cache_dict[expr] = eval(expr, {}, variable_map)
     return eval_result
 
   def EvaluateCondition(self, expr):
     '''Returns true if and only if the Python expression 'expr' evaluates
@@ skipping 82 matching lines @@
   def ExpandVariables(self):
     '''Whether we need to expand variables on a given node.'''
     return False
 
 
 class ContentNode(Node):
   '''Convenience baseclass for nodes that can have content.'''
   def _ContentType(self):
     return self._CONTENT_TYPE_MIXED