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

chrome/browser/gpu_blacklist.h

 // 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.
 
 #ifndef CHROME_BROWSER_GPU_BLACKLIST_H_
 #define CHROME_BROWSER_GPU_BLACKLIST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 210 matching lines @@
   };
 
   class GpuBlacklistEntry;
   typedef scoped_refptr<GpuBlacklistEntry> ScopedGpuBlacklistEntry;
 
   class GpuBlacklistEntry : public base::RefCounted<GpuBlacklistEntry> {
    public:
     // Constructs GpuBlacklistEntry from DictionaryValue loaded from json.
     // Top-level entry must have an id number.  Others are exceptions.
     static ScopedGpuBlacklistEntry GetGpuBlacklistEntryFromValue(
-        base::DictionaryValue* value, bool top_level);
+        const base::DictionaryValue* value, bool top_level);
 
     // Determines if a given os/gc/driver is included in the Entry set.
     bool Contains(OsType os_type,
                   const Version& os_version,
                   const content::GPUInfo& gpu_info) const;
 
     // Returns the OsType.
     OsType GetOsType() const;
 
     // Returns the entry's unique id.  0 is reserved.
@@ skipping 132 matching lines @@
 
   bool LoadGpuBlacklist(const base::DictionaryValue& parsed_json,
                         OsFilter os_filter);
 
   void Clear();
 
   // Check if the entry is supported by the current version of browser.
   // By default, if there is no browser version information in the entry,
   // return kSupported;
   BrowserVersionSupport IsEntrySupportedByCurrentBrowserVersion(
-      base::DictionaryValue* value);
+      const base::DictionaryValue* value);
 
   // GpuDataManager::Observer implementation.
   virtual void OnGpuInfoUpdate() OVERRIDE;
 
   // Returns the number of entries.  This is only for tests.
   size_t num_entries() const;
 
   // Check if any entries contain unknown fields.  This is only for tests.
   bool contains_unknown_fields() const { return contains_unknown_fields_; }
 
@@ skipping 10 matching lines @@
   std::vector<ScopedGpuBlacklistEntry> active_entries_;
 
   uint32 max_entry_id_;
 
   bool contains_unknown_fields_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuBlacklist);
 };
 
 #endif  // CHROME_BROWSER_GPU_BLACKLIST_H_