[downloads] Remove DownloadManager::RemoveAllDownloads.

content/browser/download/download_stats.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 "content/browser/download/download_stats.h"
 
 #include "base/macros.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string_util.h"
@@ skipping 675 matching lines @@
 void RecordOpen(const base::Time& end, bool first) {
   if (!end.is_null()) {
     UMA_HISTOGRAM_LONG_TIMES("Download.OpenTime", (base::Time::Now() - end));
     if (first) {
       UMA_HISTOGRAM_LONG_TIMES("Download.FirstOpenTime",
                               (base::Time::Now() - end));
     }
   }
 }
 
-void RecordClearAllSize(int size) {
-  UMA_HISTOGRAM_CUSTOM_COUNTS("Download.ClearAllSize",
-                              size,
-                              1/*min*/,
-                              (1 << 10)/*max*/,
-                              32/*num_buckets*/);
-}
-
 void RecordOpensOutstanding(int size) {
   UMA_HISTOGRAM_CUSTOM_COUNTS("Download.OpensOutstanding",
                               size,
                               1/*min*/,
                               (1 << 10)/*max*/,
                               64/*num_buckets*/);
 }
 
 void RecordContiguousWriteTime(base::TimeDelta time_blocked) {
   UMA_HISTOGRAM_TIMES("Download.FileThreadBlockedTime", time_blocked);
@@ skipping 99 matching lines @@
                                            : DOWNLOAD_REDIRECT_INSECURE
                 : is_redirect_chain_secure ? DOWNLOAD_TARGET_INSECURE
                                            : DOWNLOAD_REDIRECT_TARGET_INSECURE;
   }
 
   UMA_HISTOGRAM_ENUMERATION("Download.TargetConnectionSecurity", state,
                             DOWNLOAD_CONNECTION_SECURITY_MAX);
 }
 
 }  // namespace content