Change the API of disk_cache::CreateCacheBackend to use scoped_ptr

net/http/mock_http_cache.h

 // Copyright (c) 2011 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.
 
 // This is a mock of the http cache and related testing classes. To be fair, it
 // is not really a mock http cache given that it uses the real implementation of
 // the http cache, but it has fake implementations of all required components,
 // so it is useful for unit tests at the http layer.
 
 #ifndef NET_HTTP_MOCK_HTTP_CACHE_H_
@@ skipping 134 matching lines @@
   int open_count_;
   int create_count_;
   bool fail_requests_;
   bool soft_failures_;
   bool double_create_check_;
 };
 
 class MockBackendFactory : public net::HttpCache::BackendFactory {
  public:
   virtual int CreateBackend(net::NetLog* net_log,
-                            disk_cache::Backend** backend,
+                            scoped_ptr<disk_cache::Backend>* backend,
                             const net::CompletionCallback& callback) OVERRIDE;
 };
 
 class MockHttpCache {
  public:
   MockHttpCache();
   explicit MockHttpCache(net::HttpCache::BackendFactory* disk_cache_factory);
 
   net::HttpCache* http_cache() { return &http_cache_; }
 
@@ skipping 33 matching lines @@
 
 // This version of the disk cache doesn't invoke CreateEntry callbacks.
 class MockDiskCacheNoCB : public MockDiskCache {
   virtual int CreateEntry(const std::string& key, disk_cache::Entry** entry,
                           const net::CompletionCallback& callback) OVERRIDE;
 };
 
 class MockBackendNoCbFactory : public net::HttpCache::BackendFactory {
  public:
   virtual int CreateBackend(net::NetLog* net_log,
-                            disk_cache::Backend** backend,
+                            scoped_ptr<disk_cache::Backend>* backend,
                             const net::CompletionCallback& callback) OVERRIDE;
 };
 
 // This backend factory allows us to control the backend instantiation.
 class MockBlockingBackendFactory : public net::HttpCache::BackendFactory {
  public:
   MockBlockingBackendFactory();
   virtual ~MockBlockingBackendFactory();
 
   virtual int CreateBackend(net::NetLog* net_log,
-                            disk_cache::Backend** backend,
+                            scoped_ptr<disk_cache::Backend>* backend,
                             const net::CompletionCallback& callback) OVERRIDE;
 
   // Completes the backend creation. Any blocked call will be notified via the
   // provided callback.
   void FinishCreation();
 
-  disk_cache::Backend** backend() { return backend_; }
+  scoped_ptr<disk_cache::Backend>* backend() { return backend_; }
   void set_fail(bool fail) { fail_ = fail; }
 
   const net::CompletionCallback& callback() { return callback_; }
 
  private:
   int Result() { return fail_ ? net::ERR_FAILED : net::OK; }
 
-  disk_cache::Backend** backend_;
+  scoped_ptr<disk_cache::Backend>* backend_;
   net::CompletionCallback callback_;
   bool block_;
   bool fail_;
 };
 
 #endif  // NET_HTTP_MOCK_HTTP_CACHE_H_