Delete stream after the operation is done in MemoryFileUtil (fix for r115094)

webkit/chromeos/fileapi/memory_file_util_unittest.cc

 // 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.
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/platform_file.h"
 #include "base/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webkit/chromeos/fileapi/memory_file_util.h"
@@ skipping 198 matching lines @@
       status.entries.insert(status.entries.begin(), entries.begin(),
                             entries.end());
     }
   }
 
   void WriteToOpenedFile(int request_id,
                          const char* data,
                          int length,
                          PlatformFileError result,
                          AsyncFileStream* stream) {
+    DCHECK(status_map_.find(request_id) == status_map_.end());
     CallbackStatus status;
     status.type = CALLBACK_TYPE_OPEN;
     status.result = result;
+    status.file_stream = stream;
     status_map_[request_id] = status;
     stream->Write(data, length, GetReadWriteCallback(GetNextRequestId()));
-    delete stream;
   }
 
   scoped_ptr<MemoryFileUtil> file_util_;
   std::map<int, CallbackStatus> status_map_;
   int max_request_id_;
 
   DISALLOW_COPY_AND_ASSIGN(MemoryFileUtilTest);
 };
 
 TEST_F(MemoryFileUtilTest, TestCreateGetFileInfo) {
@@ skipping 594 matching lines @@
       ASSERT_FALSE(it->is_directory);
       ASSERT_EQ(static_cast<int64>(kTestStringLength), it->size);
     } else {
       LOG(ERROR) << "Unexpected file: " << it->name;
       ASSERT_TRUE(false);
     }
   }
 }
 
 }  // namespace fileapi