Remove dead extensions tracking code.

extensions/browser/runtime_data.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/runtime_data.h"
 
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest_handlers/background_info.h"
 
@@ skipping 20 matching lines @@
 
 bool RuntimeData::IsBeingUpgraded(const std::string& extension_id) const {
   return HasFlag(extension_id, BEING_UPGRADED);
 }
 
 void RuntimeData::SetBeingUpgraded(const std::string& extension_id,
                                    bool value) {
   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();
 }
 
 void RuntimeData::ClearAll() {
   extension_flags_.clear();
 }
 
 void RuntimeData::OnExtensionUnloaded(content::BrowserContext* browser_context,
@@ skipping 15 matching lines @@
 void RuntimeData::SetFlag(const std::string& extension_id,
                           RuntimeFlag flag,
                           bool value) {
   if (value)
     extension_flags_[extension_id] |= flag;
   else
     extension_flags_[extension_id] &= ~flag;
 }
 
 }  // namespace extensions