Make sure ShellIntegration::CommandLineArgsForLauncher respects the UserDataDir policy.

chrome/browser/policy/policy_path_parser.h

Index: chrome/browser/policy/policy_path_parser.h
diff --git a/chrome/browser/policy/policy_path_parser.h b/chrome/browser/policy/policy_path_parser.h
index ce940c33830fca37fd763259fde5679dc27998ba..b226765e0b7921393f29f9aaf0db0756369b3d80 100644
--- a/chrome/browser/policy/policy_path_parser.h
+++ b/chrome/browser/policy/policy_path_parser.h
@@ -49,6 +49,13 @@ namespace path_parser {
 base::FilePath::StringType ExpandPathVariables(
     const base::FilePath::StringType& untranslated_string);
 
+// A helper function used to read the UserDataDir path policy without relying on
+// any policy infrastructure. This is required because this policy is needed
+// much earlier before the PrefService is initialized.
+// The function will fill |user_data_dir| if the corresponding policy is set and

[brettw, 2013/02/19 18:23:45]

Can you rephrase this a bit? I don't know what the "corresponding policy" is. I
gather there is a policy for where user data dirs should be, can you say that
explicitly? (This isn't clear to random people not working on policy stuff).

[pastarmovj, 2013/02/20 10:15:05]

Done.

+// leave it intact if the policy is missing.
+void CheckUserDataDirPolicy(base::FilePath* user_data_dir);
+
 }  // namespace path_parser
 
 }  // namespace policy