Correct const accessors in base/values.(h|cc)

chrome/browser/printing/print_job_worker.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/printing/print_job_worker.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 104 matching lines @@
       BrowserThread::UI, FROM_HERE,
       base::Bind(&HoldRefCallback, make_scoped_refptr(owner_),
                  base::Bind(&PrintJobWorker::UpdatePrintSettings,
                             base::Unretained(this), new_settings)));
 }
 
 void PrintJobWorker::UpdatePrintSettings(
     const DictionaryValue* const new_settings) {
   // Create new PageRanges based on |new_settings|.
   PageRanges new_ranges;
-  ListValue* page_range_array;
+  const ListValue* page_range_array;
   if (new_settings->GetList(kSettingPageRange, &page_range_array)) {
     for (size_t index = 0; index < page_range_array->GetSize(); ++index) {
       DictionaryValue* dict;
       if (!page_range_array->GetDictionary(index, &dict))
         continue;
 
       PageRange range;
       if (!dict->GetInteger(kSettingPageRangeFrom, &range.from) ||
           !dict->GetInteger(kSettingPageRangeTo, &range.to)) {
         continue;
@@ skipping 225 matching lines @@
                             JobEventDetails::FAILED, document_,
                             scoped_refptr<PrintedPage>()));
   Cancel();
 
   // Makes sure the variables are reinitialized.
   document_ = NULL;
   page_number_ = PageNumber::npos();
 }
 
 }  // namespace printing