Return a speed of 0 if a download is paused from DownloadItem, instead of checking when rendering.

chrome/browser/download/download_item.cc

 // Copyright (c) 2010 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 "chrome/browser/download/download_item.h"
 
 #include "app/l10n_util.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/timer.h"
@@ skipping 307 matching lines @@
   int64 speed = CurrentSpeed();
   if (speed == 0)
     return false;
 
   *remaining =
       base::TimeDelta::FromSeconds((total_bytes_ - received_bytes_) / speed);
   return true;
 }
 
 int64 DownloadItem::CurrentSpeed() const {
+  if (is_paused_)
+    return 0;
   base::TimeDelta diff = base::TimeTicks::Now() - start_tick_;
   int64 diff_ms = diff.InMilliseconds();
   return diff_ms == 0 ? 0 : received_bytes_ * 1000 / diff_ms;
 }
 
 int DownloadItem::PercentComplete() const {
   int percent = -1;
   if (total_bytes_ > 0)
     percent = static_cast<int>(received_bytes_ * 100.0 / total_bytes_);
   return percent;
@@ skipping 96 matching lines @@
     return target_name_;
   return full_path_.BaseName();
 }
 
 void DownloadItem::Init(bool start_timer) {
   if (target_name_.value().empty())
     target_name_ = full_path_.BaseName();
   if (start_timer)
     StartProgressTimer();
 }