more content exports needed for unit_tests and browser_tests.

content/browser/download/download_types.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.
 
 #ifndef CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_TYPES_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_TYPES_H_
 #pragma once
 
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/memory/linked_ptr.h"
 #include "base/synchronization/lock.h"
 #include "content/common/content_export.h"
 #include "net/base/file_stream.h"
 
 namespace net {
 class IOBuffer;
 }
 
 // DownloadBuffer is created and populated on the IO thread, and passed to the
 // file thread for writing. In order to avoid flooding the file thread with too
 // many small write messages, each write is appended to the DownloadBuffer while
 // waiting for the task to run on the file thread. Access to the write buffers
 // is synchronized via the lock. Each entry in 'contents' represents one data
 // buffer and its size in bytes.
-struct DownloadBuffer {
+struct CONTENT_EXPORT DownloadBuffer {
   DownloadBuffer();
   ~DownloadBuffer();
 
   base::Lock lock;
   typedef std::pair<net::IOBuffer*, int> Contents;
   std::vector<Contents> contents;
 };
 
 // Holds the information about how to save a download file.
 struct CONTENT_EXPORT DownloadSaveInfo {
   DownloadSaveInfo();
   DownloadSaveInfo(const DownloadSaveInfo& info);
   ~DownloadSaveInfo();
   DownloadSaveInfo& operator=(const DownloadSaveInfo& info);
 
   FilePath file_path;
   linked_ptr<net::FileStream> file_stream;
   string16 suggested_name;
 };
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_TYPES_H_