Remove dead extensions tracking code.

extensions/browser/runtime_data.cc

Index: extensions/browser/runtime_data.cc
diff --git a/extensions/browser/runtime_data.cc b/extensions/browser/runtime_data.cc
index 3cee8466d5983d2da0dc9c733ec4d60c282ff309..e96cb132e88563f133e0a6be29cf591f178efb1f 100644
--- a/extensions/browser/runtime_data.cc
+++ b/extensions/browser/runtime_data.cc
@@ -38,15 +38,6 @@ void RuntimeData::SetBeingUpgraded(const std::string& extension_id,
   SetFlag(extension_id, BEING_UPGRADED, value);
 }
 
-bool RuntimeData::HasUsedWebRequest(const std::string& extension_id) const {
-  return HasFlag(extension_id, HAS_USED_WEBREQUEST);
-}
-
-void RuntimeData::SetHasUsedWebRequest(const std::string& extension_id,
-                                       bool value) {
-  SetFlag(extension_id, HAS_USED_WEBREQUEST, value);
-}
-
 bool RuntimeData::HasExtensionForTesting(
     const std::string& extension_id) const {
   return extension_flags_.find(extension_id) != extension_flags_.end();