downloads: Improve download rate estimation.

content/browser/download/base_file.h

 // 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.
 
 #ifndef CONTENT_BROWSER_DOWNLOAD_BASE_FILE_H_
 #define CONTENT_BROWSER_DOWNLOAD_BASE_FILE_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
+#include "content/browser/download/rate_estimator.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/download_interrupt_reasons.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/file_stream.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log.h"
 
 namespace crypto {
 class SecureHash;
 }
@@ skipping 137 matching lines @@
   scoped_ptr<crypto::SecureHash> secure_hash_;
 
   unsigned char sha256_hash_[kSha256HashLen];
 
   // Indicates that this class no longer owns the associated file, and so
   // won't delete it on destruction.
   bool detached_;
 
   net::BoundNetLog bound_net_log_;
 
+  RateEstimator rate_estimator_;
+
   DISALLOW_COPY_AND_ASSIGN(BaseFile);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_BASE_FILE_H_