[Downloads] Deprecate incorrect metrics.

content/browser/download/download_stats.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.
 //
 // Holds helpers for gathering UMA stats about downloads.
 
 #ifndef CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_STATS_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_STATS_H_
 
 #include <stddef.h>
@@ skipping 148 matching lines @@
     DownloadDiscardReason reason,
     DownloadDangerType danger_type,
     const base::FilePath& file_path);
 
 // Records the mime type of the download.
 void RecordDownloadMimeType(const std::string& mime_type);
 
 // Records usage of Content-Disposition header.
 void RecordDownloadContentDisposition(const std::string& content_disposition);
 
-// Record WRITE_SIZE_COUNT and data_len.
-void RecordDownloadWriteSize(size_t data_len);
-
-// Record WRITE_LOOP_COUNT and number of loops.
-void RecordDownloadWriteLoopCount(int count);
-
 // Record the number of buffers piled up by the IO thread
 // before the file thread gets to draining them.
 void RecordFileThreadReceiveBuffers(size_t num_buffers);
 
-// Record the bandwidth seen in DownloadResourceHandler
-// |actual_bandwidth| and |potential_bandwidth| are in bytes/second.
-void RecordBandwidth(double actual_bandwidth, double potential_bandwidth);
-
 // Record the time of both the first open and all subsequent opens since the
 // download completed.
 void RecordOpen(const base::Time& end, bool first);
 
 // Record whether or not the server accepts ranges, and the download size. Also
 // counts if a strong validator is supplied. The combination of range request
 // support and ETag indicates downloads that are candidates for partial
 // resumption.
 void RecordAcceptsRanges(const std::string& accepts_ranges,
                          int64_t download_len,
@@ skipping 57 matching lines @@
 // enum.
 void RecordOriginStateOnResumption(bool is_partial,
                                    int state);
 
 void RecordDownloadConnectionSecurity(const GURL& download_url,
                                       const std::vector<GURL>& url_chain);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_STATS_H_