Make PnaclTranslationCacheEntry RefCountedThreadSafe

components/nacl/browser/pnacl_translation_cache.cc

 // Copyright 2013 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 "components/nacl/browser/pnacl_translation_cache.h"
 
 #include <string.h>
 
 #include <string>
 
@@ skipping 24 matching lines @@
 const int kMaxMemCacheSize = 100 * 1024 * 1024;
 
 //////////////////////////////////////////////////////////////////////
 // Handle Reading/Writing to Cache.
 
 // PnaclTranslationCacheEntry is a shim that provides storage for the
 // 'key' and 'data' strings as the disk_cache is performing various async
 // operations. It also tracks the open disk_cache::Entry
 // and ensures that the entry is closed.
 class PnaclTranslationCacheEntry
-    : public base::RefCounted<PnaclTranslationCacheEntry> {
+    : public base::RefCountedThreadSafe<PnaclTranslationCacheEntry> {
  public:
   static PnaclTranslationCacheEntry* GetReadEntry(
       base::WeakPtr<PnaclTranslationCache> cache,
       const std::string& key,
       const GetNexeCallback& callback);
   static PnaclTranslationCacheEntry* GetWriteEntry(
       base::WeakPtr<PnaclTranslationCache> cache,
       const std::string& key,
       net::DrainableIOBuffer* write_nexe,
       const CompletionCallback& callback);
@@ skipping 13 matching lines @@
   enum CacheStep {
     UNINITIALIZED,
     OPEN_ENTRY,
     CREATE_ENTRY,
     TRANSFER_ENTRY,
     CLOSE_ENTRY,
     FINISHED
   };
 
  private:
-  friend class base::RefCounted<PnaclTranslationCacheEntry>;
+  friend class base::RefCountedThreadSafe<PnaclTranslationCacheEntry>;
   PnaclTranslationCacheEntry(base::WeakPtr<PnaclTranslationCache> cache,
                              const std::string& key,
                              bool is_read);
   ~PnaclTranslationCacheEntry();
 
   // Try to open an existing entry in the backend
   void OpenEntry();
   // Create a new entry in the backend (for writes)
   void CreateEntry();
   // Write |len| bytes to the backend, starting at |offset|
@@ skipping 348 matching lines @@
 }
 
 int PnaclTranslationCache::DoomEntriesBetween(
     base::Time initial,
     base::Time end,
     const CompletionCallback& callback) {
   return disk_cache_->DoomEntriesBetween(initial, end, callback);
 }
 
 }  // namespace pnacl