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

chrome/browser/extensions/api/omnibox/omnibox_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/omnibox/omnibox_api.h"
 
 #include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
@@ skipping 161 matching lines @@
       return false;
     }
   } else if (value.HasKey(kSuggestionDescriptionStylesRaw)) {
     // This version comes from ToValue(), which we use to persist to disk.
     const ListValue* styles = NULL;
     if (!value.GetList(kSuggestionDescriptionStylesRaw, &styles) ||
         styles->empty()) {
       return false;
     }
     for (size_t i = 0; i < styles->GetSize(); ++i) {
-      base::DictionaryValue* style = NULL;
+      const base::DictionaryValue* style = NULL;
       int offset, type;
       if (!styles->GetDictionary(i, &style))
         return false;
       if (!style->GetInteger(kDescriptionStylesType, &type))
         return false;
       if (!style->GetInteger(kDescriptionStylesOffset, &offset))
         return false;
       description_styles.push_back(ACMatchClassification(offset, type));
     }
   } else {
     description_styles.push_back(
         ACMatchClassification(0, ACMatchClassification::NONE));
   }
 
   return true;
 }
 
 bool ExtensionOmniboxSuggestion::ReadStylesFromValue(
     const ListValue& styles_value) {
   description_styles.clear();
 
   // Step 1: Build a vector of styles, 1 per character of description text.
   std::vector<int> styles;
   styles.resize(description.length());  // sets all styles to 0
 
   for (size_t i = 0; i < styles_value.GetSize(); ++i) {
-    DictionaryValue* style;
+    const DictionaryValue* style;
     std::string type;
     int offset;
     int length;
     if (!styles_value.GetDictionary(i, &style))
       return false;
     if (!style->GetString(kDescriptionStylesType, &type))
       return false;
     if (!style->GetInteger(kDescriptionStylesOffset, &offset))
       return false;
     if (!style->GetInteger(kDescriptionStylesLength, &length) || length < 0)
@@ skipping 83 matching lines @@
     for (size_t i = 0; i < description_styles.size(); ++i) {
       if (description_styles[i].offset > placeholder)
         description_styles[i].offset += replacement.length() - 2;
     }
   }
 
   match->contents.assign(description);
 }
 
 }  // namespace extensions