Move core extensions l10n code to //extensions

extensions/common/file_util.h

Index: extensions/common/file_util.h
diff --git a/extensions/common/file_util.h b/extensions/common/file_util.h
index 3ec7adec5b7ae186889e762e386e3b6658f41bf8..3113745986ad3ea0a683f8c96ae7b4df42ca30ca 100644
--- a/extensions/common/file_util.h
+++ b/extensions/common/file_util.h
@@ -5,6 +5,10 @@
 #ifndef EXTENSIONS_COMMON_FILE_UTIL_H_
 #define EXTENSIONS_COMMON_FILE_UTIL_H_
 
+#include <string>
+
+#include "extensions/common/message_bundle.h"
+
 class GURL;
 
 namespace base {
@@ -22,6 +26,19 @@ base::FilePath ExtensionURLToRelativeFilePath(const GURL& url);
 base::FilePath ExtensionResourceURLToFilePath(const GURL& url,
                                               const base::FilePath& root);
 
+// Loads extension message catalogs and returns message bundle.
+// Returns NULL on error or if the extension is not localized.
+MessageBundle* LoadMessageBundle(const base::FilePath& extension_path,
+                                 const std::string& default_locale,
+                                 std::string* error);
+
+// Loads the extension message bundle substitution map. Contains at least
+// the extension_id item.
+MessageBundle::SubstitutionMap* LoadMessageBundleSubstitutionMap(
+    const base::FilePath& extension_path,
+    const std::string& extension_id,
+    const std::string& default_locale);
+
 }  // namespace file_util
 }  // namespace extensions