Make SimpleEntryImpl ref counted.

net/disk_cache/simple/simple_backend_impl.cc

 // Copyright (c) 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 "net/disk_cache/simple/simple_backend_impl.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/file_util.h"
 #include "base/location.h"
@@ skipping 60 matching lines @@
 }
 
 int32 SimpleBackendImpl::GetEntryCount() const {
   NOTIMPLEMENTED();
   return 0;
 }
 
 int SimpleBackendImpl::OpenEntry(const std::string& key,
                                  Entry** entry,
                                  const CompletionCallback& callback) {
-  return SimpleEntryImpl::OpenEntry(
-      index_->AsWeakPtr(), path_, key, entry, callback);
+  return SimpleEntryImpl::OpenEntry(index_, path_, key, entry, callback);
 }
 
 int SimpleBackendImpl::CreateEntry(const std::string& key,
                                    Entry** entry,
                                    const CompletionCallback& callback) {
-  return SimpleEntryImpl::CreateEntry(
-      index_->AsWeakPtr(), path_, key, entry, callback);
+  return SimpleEntryImpl::CreateEntry(index_, path_, key, entry, callback);
 }
 
 int SimpleBackendImpl::DoomEntry(const std::string& key,
                                  const net::CompletionCallback& callback) {
-  return SimpleEntryImpl::DoomEntry(index_->AsWeakPtr(), path_, key, callback);
+  return SimpleEntryImpl::DoomEntry(index_, path_, key, callback);
 }
 
 int SimpleBackendImpl::DoomAllEntries(const CompletionCallback& callback) {
   NOTIMPLEMENTED();
   return net::ERR_FAILED;
 }
 
 int SimpleBackendImpl::DoomEntriesBetween(
     const Time initial_time,
     const Time end_time,
@@ skipping 44 matching lines @@
   int rv = net::OK;
   if (!file_util::PathExists(path) && !file_util::CreateDirectory(path)) {
     LOG(ERROR) << "Simple Cache Backend: failed to create: " << path.value();
     rv = net::ERR_FAILED;
   }
 
   io_thread->PostTask(FROM_HERE, base::Bind(initialize_index_callback, rv));
 }
 
 }  // namespace disk_cache