DNR Prototype: With flatbuffers

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 6678163c92cd245f8e09f14bfadcd86e1efd5617..3cfdf1bc601d3edf5bbaa691d4498eb48f3eea07 100644
--- a/extensions/common/file_util.h
+++ b/extensions/common/file_util.h
@@ -71,6 +71,10 @@ std::unique_ptr<base::DictionaryValue> LoadManifest(
     const base::FilePath::CharType* manifest_filename,
     std::string* error);
 
+bool IndexAndPersistRulesetIfNeeded(const Extension* extension,
+                                    const base::FilePath& indexed_ruleset_path,
+                                    std::string* error);
+
 // Returns true if the given extension object is valid and consistent.
 // May also append a series of warning messages to |warnings|, but they
 // should not prevent the extension from running.
@@ -151,6 +155,9 @@ MessageBundle::SubstitutionMap* LoadMessageBundleSubstitutionMapFromPaths(
 base::FilePath GetVerifiedContentsPath(const base::FilePath& extension_path);
 base::FilePath GetComputedHashesPath(const base::FilePath& extension_path);
 
+// Helper function to get path where the indexed ruleset file used for the
+// Declarative Net Request API is stored.
+base::FilePath GetIndexedRulesetPath(const base::FilePath& extension_path);
 }  // namespace file_util
 }  // namespace extensions