downloads: Improve download rate estimation.

content/content_browser.gypi

 # 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.
 
 {
   'dependencies': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 395 matching lines @@
     'browser/download/drag_download_file.cc',
     'browser/download/drag_download_file.h',
     'browser/download/drag_download_util.cc',
     'browser/download/drag_download_util.h',
     'browser/download/file_metadata_linux.cc',
     'browser/download/file_metadata_linux.h',
     'browser/download/file_metadata_mac.h',
     'browser/download/file_metadata_mac.mm',
     'browser/download/mhtml_generation_manager.cc',
     'browser/download/mhtml_generation_manager.h',
+    'browser/download/rate_estimator.cc',
+    'browser/download/rate_estimator.h',
     'browser/download/save_file.cc',
     'browser/download/save_file.h',
     'browser/download/save_file_manager.cc',
     'browser/download/save_file_manager.h',
     'browser/download/save_file_resource_handler.cc',
     'browser/download/save_file_resource_handler.h',
     'browser/download/save_item.cc',
     'browser/download/save_item.h',
     'browser/download/save_package.cc',
     'browser/download/save_package.h',
@@ skipping 926 matching lines @@
         '../third_party/speex/speex.gyp:libspeex',
       ],
     }],
     ['linux_use_libgps==1', {
       'dependencies': [
         '../build/linux/system.gyp:libgps',
       ],
     }],
   ],
 }