Surface error messages from ONC parsing in about:policy.

chrome/tools/build/generate_policy_source.py

Index: chrome/tools/build/generate_policy_source.py
diff --git a/chrome/tools/build/generate_policy_source.py b/chrome/tools/build/generate_policy_source.py
index 95234398eaf6a03a374f4701786771ba9b8dda86..9cef5ea1bc700059d0982c783a0bd2cd3684056e 100644
--- a/chrome/tools/build/generate_policy_source.py
+++ b/chrome/tools/build/generate_policy_source.py
@@ -3,10 +3,11 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-'''python %prog [options] platform template
+'''python %prog [options] platform chromium_os_flag template
 
 platform specifies which platform source is being generated for
-  and can be one of (win, mac, linux).
+  and can be one of (win, mac, linux)
+chromium_os_flag should be 1 if this is a Chromium OS build
 template is the path to a .json policy template file.'''
 
 from __future__ import with_statement
@@ -47,11 +48,11 @@ def main():
 
   (opts, args) = parser.parse_args();
 
-  if len(args) < 2 or len(args) > 2:
-    print "exactly one platform and input file must be specified."
+  if len(args) != 3:
+    print "exactly platform, chromium_os flag and input file must be specified."
     parser.print_help()
     sys.exit(2)
-  template_file_contents = _LoadJSONFile(args[1]);
+  template_file_contents = _LoadJSONFile(args[2]);
   if opts.header_path is not None:
     _WritePolicyConstantHeader(template_file_contents, args, opts);
   if opts.source_path is not None:
@@ -80,7 +81,7 @@ def _GetPolicyDetails(policy):
     print "Unknown policy type for %s: %s" % (policy['name'], policy['type'])
     sys.exit(3)
   # platforms is a list of "chrome", "chrome_os" and/or "chrome_frame".
-  platforms = [ x.split('.')[0].split(':')[0] for x in policy['supported_on'] ]
+  platforms = [ x.split(':')[0] for x in policy['supported_on'] ]
   is_device_policy = policy.get('device_only', False)
   return (policy['name'], TYPE_MAP[policy['type']], platforms, is_device_policy)
 
@@ -104,17 +105,8 @@ def _GetPolicyNameList(template_file_contents):
 
 
 def _GetChromePolicyList(template_file_contents):
-  return [(name, vtype) for (name, vtype, platforms, is_device_only)
-                        in _GetPolicyList(template_file_contents)
-                        if 'chrome' in platforms and not is_device_only]
-
-
-def _GetChromeOSPolicyList(template_file_contents):
-  return [(name, vtype) for (name, vtype, platforms, is_device_only)
-                        in _GetPolicyList(template_file_contents)
-                        if 'chrome_os' in platforms
-                          and not 'chrome' in platforms
-                          and not is_device_only]
+  return [(name, platforms, vtype) for (name, vtype, platforms, is_device_only)
+                                   in _GetPolicyList(template_file_contents)]
 
 
 def _LoadJSONFile(json_file):
@@ -125,9 +117,9 @@ def _LoadJSONFile(json_file):
 
 #------------------ policy constants header ------------------------#
 def _WritePolicyConstantHeader(template_file_contents, args, opts):
-  platform = args[0];
+  os = args[0];
   with open(opts.header_path, "w") as f:
-    _OutputGeneratedWarningForC(f, args[1])
+    _OutputGeneratedWarningForC(f, args[2])
 
     f.write('#ifndef CHROME_COMMON_POLICY_CONSTANTS_H_\n'
             '#define CHROME_COMMON_POLICY_CONSTANTS_H_\n'
@@ -138,7 +130,7 @@ def _WritePolicyConstantHeader(template_file_contents, args, opts):
             '\n'
             'namespace policy {\n\n')
 
-    if platform == "win":
+    if os == "win":
       f.write('// The windows registry path where policy configuration '
               'resides.\n'
               'extern const wchar_t kRegistrySubKey[];\n\n')
@@ -172,9 +164,17 @@ def _WritePolicyConstantHeader(template_file_contents, args, opts):
 
 #------------------ policy constants source ------------------------#
 def _WritePolicyConstantSource(template_file_contents, args, opts):
-  platform = args[0];
+  os = args[0];
+  is_chromium_os = args[1] == "1"
+  platform = None
+  platform_wildcard = None
+  if is_chromium_os:
+    platform = 'chrome_os'
+  else:
+    platform = 'chrome.' + os.lower()
+    platform_wildcard = 'chrome.*'
   with open(opts.source_path, "w") as f:
-    _OutputGeneratedWarningForC(f, args[1])
+    _OutputGeneratedWarningForC(f, args[2])
 
     f.write('#include "base/basictypes.h"\n'
             '#include "base/logging.h"\n'
@@ -185,13 +185,11 @@ def _WritePolicyConstantSource(template_file_contents, args, opts):
     f.write('namespace {\n\n')
 
     f.write('PolicyDefinitionList::Entry entries[] = {\n')
-    for (name, vtype) in _GetChromePolicyList(template_file_contents):
-      f.write('  { kPolicy%s, Value::%s, key::k%s },\n' % (name, vtype, name))
-    f.write('\n#if defined(OS_CHROMEOS)\n')
-    for (name, vtype) in _GetChromeOSPolicyList(template_file_contents):
-      f.write('  { kPolicy%s, Value::%s, key::k%s },\n' % (name, vtype, name))
-    f.write('#endif\n'
-            '};\n\n')
+    policy_list = _GetChromePolicyList(template_file_contents)
+    for (name, platforms, vtype) in policy_list:
+      if (platform in platforms) or (platform_wildcard in platforms):
+        f.write('  { kPolicy%s, Value::%s, key::k%s },\n' % (name, vtype, name))
+    f.write('};\n\n')
 
     f.write('PolicyDefinitionList chrome_policy_list = {\n'
             '  entries,\n'
@@ -206,7 +204,7 @@ def _WritePolicyConstantSource(template_file_contents, args, opts):
 
     f.write('}  // namespace\n\n')
 
-    if platform == "win":
+    if os == "win":
       f.write('#if defined(GOOGLE_CHROME_BUILD)\n'
               'const wchar_t kRegistrySubKey[] = '
               'L"' + CHROME_SUBKEY + '";\n'