Removed unnecessary DCHECK on entry

net/disk_cache/sparse_control.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 "net/disk_cache/sparse_control.h"
 
 #include "base/bind.h"
 #include "base/format_macros.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 314 matching lines @@
   // We'll grab another reference to keep this object alive because we just have
   // one extra reference due to the pending IO operation itself, but we'll
   // release that one before invoking user_callback_.
   entry_->AddRef();  // Balanced in DoAbortCallbacks.
   abort_callbacks_.push_back(callback);
   return net::ERR_IO_PENDING;
 }
 
 // Static
 void SparseControl::DeleteChildren(EntryImpl* entry) {
-  DCHECK(entry);
   DCHECK(entry->GetEntryFlags() & PARENT_ENTRY);
   int data_len = entry->GetDataSize(kSparseIndex);
   if (data_len < static_cast<int>(sizeof(SparseData)) ||
       entry->GetDataSize(kSparseData))
     return;
 
   int map_len = data_len - sizeof(SparseHeader);
   if (map_len > kMaxMapSize || map_len % 4)
     return;
 
@@ skipping 530 matching lines @@
     CompletionCallback cb = abort_callbacks_[i];
     if (i == abort_callbacks_.size() - 1)
       abort_callbacks_.clear();
 
     entry_->Release();  // Don't touch object after this line.
     cb.Run(net::OK);
   }
 }
 
 }  // namespace disk_cache