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

chrome/browser/ui/webui/gpu_internals_ui.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/gpu_internals_ui.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 114 matching lines @@
                  base::Unretained(this)));
   web_ui()->RegisterMessageCallback("callAsync",
       base::Bind(&GpuMessageHandler::OnCallAsync,
                  base::Unretained(this)));
 }
 
 void GpuMessageHandler::OnCallAsync(const ListValue* args) {
   DCHECK_GE(args->GetSize(), static_cast<size_t>(2));
   // unpack args into requestId, submessage and submessageArgs
   bool ok;
-  Value* requestId;
+  const Value* requestId;
   ok = args->Get(0, &requestId);
   DCHECK(ok);
 
   std::string submessage;
   ok = args->GetString(1, &submessage);
   DCHECK(ok);
 
   ListValue* submessageArgs = new ListValue();
   for (size_t i = 2; i < args->GetSize(); ++i) {
-    Value* arg;
+    const Value* arg;
     ok = args->Get(i, &arg);
     DCHECK(ok);
 
     Value* argCopy = arg->DeepCopy();
     submessageArgs->Append(argCopy);
   }
 
   // call the submessage handler
   Value* ret = NULL;
   if (submessage == "requestClientInfo") {
@@ skipping 140 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 
 GpuInternalsUI::GpuInternalsUI(content::WebUI* web_ui)
     : WebUIController(web_ui) {
   web_ui->AddMessageHandler(new GpuMessageHandler());
 
   // Set up the chrome://gpu-internals/ source.
   Profile* profile = Profile::FromWebUI(web_ui);
   ChromeURLDataManager::AddDataSource(profile, CreateGpuHTMLSource());
 }