'linux' platform should exclude 'chromeos' in json compiler.

tools/json_schema_compiler/cpp_bundle_generator.py

 # 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.
 
 import code
 import cpp_util
 from model import Platforms
 from schema_util import CapitalizeFirstLetter
 from schema_util import JsFunctionNameToClassName
 
@@ skipping 76 matching lines @@
     """Generates the "defined" conditional for an #if check if |model_object|
     has platform restrictions. Returns None if there are no restrictions.
     """
     if model_object.platforms is None:
       return None
     ifdefs = []
     for platform in model_object.platforms:
       if platform == Platforms.CHROMEOS:
         ifdefs.append('defined(OS_CHROMEOS)')
       elif platform == Platforms.LINUX:
-        ifdefs.append('defined(OS_LINUX)')
+        ifdefs.append('(defined(OS_LINUX) && !defined(OS_CHROMEOS))')
       elif platform == Platforms.MAC:
         ifdefs.append('defined(OS_MACOSX)')
       elif platform == Platforms.WIN:
         ifdefs.append('defined(OS_WIN)')
       else:
         raise ValueError("Unsupported platform ifdef: %s" % platform.name)
     return ' || '.join(ifdefs)
 
   def _GenerateRegisterFunctions(self, namespace_name, function):
     c = code.Code()
@@ skipping 214 matching lines @@
     c.Append()
     c.Append('// static')
     c.Sblock('bool %s::IsGenerated(std::string name) {' %
              self._bundle._GenerateBundleClass('GeneratedSchemas'))
     c.Append('return g_lazy_instance.Get().schemas.count(name) > 0;')
     c.Eblock('}')
     c.Append()
     c.Concat(cpp_util.CloseNamespace(self._bundle._cpp_namespace))
     c.Append()
     return c