Delete some unused code found by -Wunused-function

chrome/browser/extensions/api/declarative/declarative_api.cc

 // Copyright (c) 2012 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 "chrome/browser/extensions/api/declarative/declarative_api.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/task_runner_util.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/declarative/rules_registry_service.h"
 #include "chrome/browser/extensions/extension_system_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/extensions/api/events.h"
 #include "content/public/browser/browser_thread.h"
 
 using extensions::api::events::Rule;
 
 namespace AddRules = extensions::api::events::Event::AddRules;
 namespace GetRules = extensions::api::events::Event::GetRules;
 namespace RemoveRules = extensions::api::events::Event::RemoveRules;
 
-namespace {
-
-// Adds all entries from |list| to |out|. Assumes that all entries of |list|
-// are strings. Returns true if successful.
-bool AddAllStringValues(ListValue* list, std::vector<std::string>* out) {
-  for (ListValue::iterator i = list->begin(); i != list->end(); ++i) {
-    std::string value;
-    if (!(*i)->GetAsString(&value))
-      return false;
-    out->push_back(value);
-  }
-  return true;
-}
-
-}  // namespace
-
 namespace extensions {
 
 RulesFunction::RulesFunction() : rules_registry_(NULL) {}
 
 RulesFunction::~RulesFunction() {}
 
 bool RulesFunction::HasPermission() {
   std::string event_name;
   EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &event_name));
   return extension_->HasAPIPermission(event_name);
@@ skipping 67 matching lines @@
     error_ = rules_registry_->GetAllRules(extension_id(), &rules);
   }
 
   if (error_.empty())
     results_ = GetRules::Results::Create(rules);
 
   return error_.empty();
 }
 
 }  // namespace extensions