Correct const accessors in base/values.(h|cc), Part II (ListValue)

chrome/browser/ui/webui/options2/handler_options_handler.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/ui/webui/options2/handler_options_handler.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 113 matching lines @@
   }
 
   scoped_ptr<ListValue> ignored_handlers(new ListValue());
   GetIgnoredHandlers(ignored_handlers.get());
   web_ui()->CallJavascriptFunction("HandlerOptions.setHandlers", handlers);
   web_ui()->CallJavascriptFunction("HandlerOptions.setIgnoredHandlers",
                                    *ignored_handlers);
 }
 
 void HandlerOptionsHandler::RemoveHandler(const ListValue* args) {
-  ListValue* list;
+  const ListValue* list;
   if (!args->GetList(0, &list)) {
     NOTREACHED();
     return;
   }
 
   ProtocolHandler handler(ParseHandlerFromArgs(list));
   GetProtocolHandlerRegistry()->RemoveHandler(handler);
 
   // No need to call UpdateHandlerList() - we should receive a notification
   // that the ProtocolHandlerRegistry has changed and we will update the view
   // then.
 }
 
 void HandlerOptionsHandler::RemoveIgnoredHandler(const ListValue* args) {
-  ListValue* list;
+  const ListValue* list;
   if (!args->GetList(0, &list)) {
     NOTREACHED();
     return;
   }
 
   ProtocolHandler handler(ParseHandlerFromArgs(list));
   GetProtocolHandlerRegistry()->RemoveIgnoredHandler(handler);
 }
 
 void HandlerOptionsHandler::SetHandlersEnabled(const ListValue* args) {
   bool enabled = true;
   CHECK(args->GetBoolean(0, &enabled));
   if (enabled)
     GetProtocolHandlerRegistry()->Enable();
   else
     GetProtocolHandlerRegistry()->Disable();
 }
 
 void HandlerOptionsHandler::ClearDefault(const ListValue* args) {
-  Value* value;
+  const Value* value;
   CHECK(args->Get(0, &value));
   std::string protocol_to_clear;
   CHECK(value->GetAsString(&protocol_to_clear));
   GetProtocolHandlerRegistry()->ClearDefault(protocol_to_clear);
 }
 
 void HandlerOptionsHandler::SetDefault(const ListValue* args) {
-  Value* value;
-  CHECK(args->Get(0, &value));
-  ListValue* list;
+  const ListValue* list;
   CHECK(args->GetList(0, &list));
   const ProtocolHandler& handler(ParseHandlerFromArgs(list));
   CHECK(!handler.IsEmpty());
   GetProtocolHandlerRegistry()->OnAcceptRegisterProtocolHandler(handler);
 }
 
 ProtocolHandler HandlerOptionsHandler::ParseHandlerFromArgs(
     const ListValue* args) const {
   string16 protocol;
   string16 url;
@@ skipping 11 matching lines @@
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   if (type == chrome::NOTIFICATION_PROTOCOL_HANDLER_REGISTRY_CHANGED)
     UpdateHandlerList();
   else
     NOTREACHED();
 }
 
 }  // namespace options2